Patent number dating chart

Data: 3.09.2017 / Rating: 4.7 / Views: 657

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Patent number dating chart

U. Design Patents 1843 2000 These patents protect solely the appearance of an article. 1843 1 14 51 rowsThe United States patent number for each year is the first patent issued that calendar. Antiques of a Mechanical Nature. Below is a chart giving the year and patent numbers issued during that year. See special notes and further info. 182 rowsSome patent numbers, In addition, the Patent and Trademark Office has a file that lists all patent numbers and their associated dates of grant. Search our website or catalogue Search our The entry for each patent gives number, date. Biddington's provides a list of US patent numbers crossreferenced with the dates they were issued to help in determining the age of antiques collectibles. TAF REPORT ISSUE DATES AND PATENT NUMBERS SINCE 1836: BY YEAR 1836 TO 2001 BY ISSUE DATE 1963 (With addendum for issue dates from 1995 2001) Biddington's provides a list of patent numbers crossreferenced with the dates they were issued to help in determining the age of antiques and collectibles. If you only have a pre1976 patent date, U. Dating Americ an Clocks by Their Patent Numbers. Parts found in many American clocks may be marked with one or more United States patent numbers. this chart will help you find the year an item was patented if you know the patent number, also design patents. Chart showing last GB patent issued in each year from 1920 to 1959. This document was inspired by a list published at showing the. Year Patent# Year Patent# 1836 1 109 1900 640, 167 664, 826 1837 110 545 1901 664, 827. Tips to help you determine the age of your antique clock. Using Patent Numbers to Determine Age: British Registry Numbers: British Stanley Plane Dating Flowchart How many patent Is plane number broad, flat rib Type 9 Bailey and patent dates appear on bed. patent number dates chart, patent number dates chart. pdf document, pdf search for patent number dates chart The purpose of this guide is to help people date items that they think are old. If you have a patent number on an item, you can approximately date it using the chart. Patent Numbers and Corresponding Dates. These dates are a handy reference that you may find useful for figuring out when an item was first produced. Logos Markings index Dunhill markings chart Dating key.

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