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            Illusion Jewels Vintage Costume Jewelry Links to Jewelry Research
            August 24, 2019
            Selro & Selini Jewelry: Styles and Findings
            August 24, 2019

            Vintage Jewelry Patents

            Published by Mark Lewis on August 24, 2019
            Categories
            • Mechanical and Utility Jewelry Patents
            Tags

            Costume Jewelry Collectors
            Presents
            an original publication by RCJ and Dorothea Stringfield

            Want to know the difference in a patent, a copyright or trademark?    Visit the US Patent Website!

            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.

            A Utility Patent protects the structure and function of the invention.

             

            *Written permission necessary to use information or pictures from this site in any other publications, written or electronic.

             

            Patents for Cartier Jewelry
            Cartier Jewelry Patents
            Mechanical Patents
            Jewelry Utility Patents
            1911 – 1929
            1930 – 1939
            1940 – 1959
            1960 – 1979
            jewelry patents for Trifari
            Trifari Jewelry Patents
            1937
            1938
            1939
            1940
            1941
            1942
            1943
            1944
            1945
            1946
            1947
            1948
            1949


            Researching Costume Jewelry — Home

            Copyright 1997 to present — www.costumejewelrycollectors.com — All Rights Reserved.
            All RCJ publications and pages were created
            by Dotty Stringfield with the assistance of research contributor Pat Seal
            and other valued members of the costume jewelry collecting community.

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            Mark Lewis
            Mark Lewis

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