Dating british patent numbers

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We can either copy our records Dating british patent numbers paper or deliver them to you digitally. Visit us in Kew to see original documents or view online records for free. Consider paying for research. Use this guide for advice on how to find patents of invention, and related records, dating from between and October and now held at The National Archives.

There is also advice on records dating from as early as the 16th century relating to patenting of inventions. Up to October the Court of Chancery was responsible for safe-guarding intellectual property rights in England and Wales, issuing and recording patents of invention and the related records. The Patent Office took over this responsibility when it was founded in Today it is the responsibility of the Intellectual Property Office. The Espacenet database contains information about patents worldwide from to the present day.

Consult our guide to registered des for advice on other records of inventions. Inventors can get an exclusive right to manufacture their own inventions for a limited period. Initially, in the years fromthe inventions were enrolled but not described in much detail. Later in the century they came to be described in increasing detail until this became routine. Fromspecifications providing full working details of the invention began to be enrolled in a different place, after the issue of the patent. Bythey were almost compulsory.

about historical British patents on the British Library website. The patent itself contains the formulaic text for the application of patents of invention. It was enrolled on parchment. The specifications of inventions contain illustrations and information about the inventions themselves. They were also enrolled. Printed copies of these specifications, where they exist, were created in the s following reforms to patent law.

Where there were no specifications, the details of the grant recorded in the Patent Rolls were transcribed. These printed specifications and transcriptions are held by the British Library.

Dating british patent numbers

The first stage in finding a patent of invention from this period is to find the reference and year in printed indexes held at The National Archives, the British Library and in several reference libraries. These indexes were published in by Bennet Woodcroft as a six-volume work called Patents of Invention: from March 2, 14 James I to October 1, 16 Victoriae.

They are arranged in four sequences:.

Dating british patent numbers

Having found the reference and the year for example, Electric batteries, Reference 12, Yearyou can search for the original documents held at The National Archives or a printed version at the British Library — for advice on this you will need to contact the British Library itself. They are identified by the series reference C The calendars usually have some kind of index at the back, or the entries are arranged by initial letter of surname. Patents of invention are enrolled, along with many other types of letters patent, in the patent rolls in C Most of the entries in the printed indexes in C have been marked up with the modern C 66 reference.

This will provide the C 66 reference with which you can order the respective patent roll. Specifications were enrolled separately in any one of three Chancery offices. If you cannot find a reference in that index you need to follow these steps:. Search in C 54 to convert this into a modern reference. The alphabetical index has been marked up with all the modern references to C Try both the C 73 section and the C 54 section under the rough date specifications were filed after patents.

C 73 entries have the modern reference written in red. C 54 entries have to be converted, using the C 54 list referred to above. You Dating british patent numbers find other types of records relating to patents before October at The National Archives.

Dating british patent numbers

Try SO 7 from These bills, which authorised the issue of letters patent, sometimes include drawings of inventions. Use the reference index see section 3which has an appendix giving abstracts from some early applications for patents, where no separate specification was enrolled. Patents and specifications issued after are not held at The National Archives. The Espacenet database contains information about patents worldwide, from to the present day. The United Kingdom patent records on the site start inalthough coverage is not complete for the period from to The National Archives generally does not hold patents or specifications after However, we hold many records relating to patents which include:.

You can search these records in our catalogue using keywords. You can also browse the Patent Office division in our catalogue.

Dating british patent numbers

Scotland had its own separate registration system for patents before Go to the National Archives Scotland for the records. However, we do hold some records of Scottish inventions in:. Ireland had its own separate registration system for patents beforebut the records no longer survive. However, you can find some records at The National Archives which refer to Irish patents in:. For quick pointers Tuesday to Saturday to Discovery is a catalogue of archival records across the UK and beyond, from which you can search 32 million records. Search our website Search Discovery, our catalogue.

How to look for records of Intellectual Dating british patent numbers patents of invention How can I view the records covered in this guide? View Online How many are online? None Some All. Order copies We can either copy our records onto paper or deliver them to you digitally. Visit us in Kew Visit us in Kew to see original documents or view online records for free. Pay for research Consider paying for research. Contents 1. Why use this guide? The patenting process and the records it produced 3. Finding patents of invention October 4. Finding specifications up to October 5.

Other patent records 6. Early patents of invention, with no specification 7. Records after October 8. Scottish patents up to October 9. Irish patents up to October Further reading. The patenting process and the records it produced Inventors can get an exclusive right to manufacture their own inventions for a limited period. Finding patents of invention October Step 1: Find an entry in the published indexes The first stage in finding a patent of invention from this period is to find the reference and year in printed indexes held at The National Archives, the British Library and in several reference libraries.

They are arranged in four sequences: Alphabetical index, of inventors Subject index, of inventions Chronological index Reference index: publication details, and enrolment details Having found the reference and the year for example, Electric batteries, Reference 12, Yearyou can search for the original documents held at The National Archives or a printed version at the British Library — for advice on this you will need to contact the British Library itself.

Dating british patent numbers

Step 3: Convert the printed index reference in C to a patent roll reference in C 66 Patents of invention are enrolled, along with many other types of letters patent, in the patent rolls in C Finding specifications up to October Specifications were enrolled separately in any one of three Chancery offices. If you cannot find a reference in that index you need to follow these steps: Step 1: Take the bold reference from the alphabetical index see section 3and look it up in the reference index. Petty Bag The alphabetical index has been marked up with all the modern references to C Other patent records You can find other types of records relating to patents before October at The National Archives.

Search State Papers Online or use the entry books in SP 44 petitions for patents from onwards in HO 42HO 44 and HO 45with entry books in HO 43 warrants to law officers to draft patents of invention for in HO 89 some reports by law officers, applications by Dating british patent numbers agents and disputed cases,in LO 1 6. Early patents of invention, with no specification Most early patents give few details about the precise nature of the invention. Records after October Patents and specifications issued after are not held at The National Archives. However, we hold many records relating to patents which include: registered des and trademarks patent policy BT some disputed patents LO 4J 99J patents of interest to government departments such as the Admiralty ADM and the National Physical Laboratory DSIR 10DSIR 17 disclaimers of specifications for C 54 You can search these records in our catalogue using keywords.

Scottish patents up to October Scotland had its own separate registration system for patents before However, we do hold some records of Scottish inventions in: HOrelating to Scottish inventions, HOwhich can refer to inventions, 9. Irish patents up to October Ireland had its own separate registration system for patents beforebut the records no longer survive.

Dating british patent numbers

for advice. Still need help? Live chat For quick pointers Tuesday to Saturday to For more detailed research enquiries. Related research guides. Apprentices and masters. Intellectual property: registered des Intellectual property: trade marks, Search our catalogue.

Dating british patent numbers

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