This article contains information for dating musical instruments using patent information. PATENT NUMBERS AND DATES. If you have ever had trouble dating old instruments, this list may be a help. It shows the first patent number issued in each year, so if you have a patent number, this easily yields the approximate date to begin with. If something is . Find early British patents. Skip to main content. Search our website or From October onwards British patents covered the whole of the United Kingdom and were printed and published regularly each week in pamphlet form. The text of the patent document identifies the patentee and provides a technical description of the invention. In many . Biddington's provides a list of patent numbers United States Patent and Trademark Office UK Intellectual Property Information European Patent Office Happy Dating!

Dating patent numbers uk -

While we cannot promise to accommodate all requests, your suggestions will be considered and may lead to other improvements on the website. Because there was never a set rule for how to cite a British patent on an item, many variations can be found. The patents to are cited in the format GB , again with zeroes if necessary to make 5 digits after the year. How to interpret English Registry Marks and Numbers. British Registered Design Numbers British registered design numbers are often confused with patent numbers, but they are not the same. The user should note that while the data in this table have been checked, it still is possible that inadvertent errors remain. We have 35, antique clock prices, images and descriptions as of April 5,

Dating patent numbers uk -

In the letter R was used during of September, during the letter K was used for December. British registered design numbers are often confused with patent numbers, but they are not the same. Some items show application numbers even though the patent was never granted. British Patent Numbers Because there was never a set rule for how to cite a British patent on an item, many variations can be found. In this case, it became GBA. Companies located outside the UK who have reproduced items, and tried to use a facsimile of the marks or numbering system have been sued, and have had sanctions imposed against them. Often a citation to such a patent omits the year, which makes finding the number very awkward. How to read Louis Vuitton Datecodes in Handbags & Accessories, Date Code Meaning For copyright complaints and DMCA notices, please visit our copyright infringement page. This tends to protect the use of these marks, and in general restricts them dating patent numbers uk use on pieces made in the UK. In July the numbering sequence changed as indicated on the chart. In practice the codes can alter with numbers to reflect amended grants C for example but this covers the vast majority. On older items, often only the name of the inventor or the company was used.

Dating Patent Numbers Uk. Issue Years and Patent Numbers