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Vintage Jewelry Patents: Find and Use them to Date Vintage ...

    https://www.myclassicjewelry.com/blog/vintage-jewelry-patents/
    Sep 05, 2014 · Note that Design patents, which includes vintage jewelry patents, must begin with the capital letter “D” followed by a 7-digit number. If your patent number is only 6-digits, add a leading zero, as shown in the illustration below. By the way, I tried …

Jewelry Patents UpCounsel 2020

    https://www.upcounsel.com/jewelry-patents
    Nov 09, 2020 · Patents from before 1976 are stored as PDF files. Design patents, including jewelry patents, should start with the letter D and have seven numbers. If the patent only has six numbers, add a zero at the beginning. After you enter the number, you'll see the first page.

Vintage Jewelry Patents - costumejewelrycollectors.com

    https://www.costumejewelrycollectors.com/vintage-costume-jewelry-research/research-resources/mechanical-and-utility-jewelry-patents/vintage-jewelry-patents-2/
    Aug 24, 2019 · Also, visit Jewelry Patents, a large patent resource Jewelry Patents Definitions: A Design Patent only protects the appearance of an article, not it’s structural or functional features, and is usually used for decorative items.

Jewelry Patents - Patent Search Information

    http://www.patent-search-information.com/jewelrypatents.html
    Aug 17, 2014 · Jewelry patents are great sources of information for collectors and designers. Included listings of jewelry design patents are especially useful for collectors of vintage jewelry. Also use this site to search for more jewelry patents.

Biddington's: US Patent Numbers Chart for Dating Antiques ...

    http://www.biddingtons.com/content/patentchart.html
    An amazing variety of 19th and 20th century American antiques, jewelry and collectibles are marked with the patent number identifying the year that the object was patented. 1836 : 1 - 109 1837 : 110 - 545

US3176475A - Adjustable clip for earrings ... - Google Patents

    https://patents.google.com/patent/US3176475A/en
    ADJUSTABLE CLIP F OR EARRINGS HAVING A SINGLE TOOTH THREAD MEANS Filed Aug. 14, 1962 INV EN TOR. fizaieflmlfaccaaca'a BY g ATTORNEYS United States Patent ADJUSTABLE CLIP FOR EGS HAVHJG A SINGLE...

Antique and Vintage Jewelry Maker's Marks: A Collector’s Guide

    https://www.invaluable.com/blog/guide-to-jewelry-marks/
    Apr 06, 2020 · Jewelry Maker’s Marks: A Brief History. To be considered an antique, a piece of jewelry must be 100 years or older, while vintage jewelry must be more than 20 years old to be classified as such. “Retro” jewelry refers to pieces made during the 1940s and ‘50s and are characterized by the use of large and colorful gemstones.

JewelryPatents.com

    https://www.jewelrypatents.com/
    Face Plate for Article of Jewelry; Finding; Finger Ring; Hat Pin; Jewel For Multiple Uses; Jewelry Clasp; Jewelry Clip; Jewelry Component; Jewelry Finding; Jewelry Finding for a Pin; Jewelry Finding for Clips ; Jewelry Pendant; Jewelry Pin; Jewelry Stone Finding; Lapel Pin; Link Bracelet; Link Chain; Link Chain for Bracelet; Link Chain for ...

Issue Years and Patent Numbers

    https://www.uspto.gov/web/offices/ac/ido/oeip/taf/issuyear.htm
    Therefore, the number of patents granted during a year cannot be determined by simply subtracting the number of the first patent issued in one year from the number of the first patent issued in the next year. The user should note that while the data in this table have been checked, it still is possible that inadvertent errors remain. ...

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