Utility Patents For Jewelry
1900 - 1929



My friend Mary Walden-Till of the UK is responsible for these pages of utility patents.  Her dedication in searching the US patent website and willingness to share her findings is greatly appreciated.

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.  Usually marked on part of the mechanism.

1900 - 1929   1930 - 1939   1940 - 1959   1960 - 1979  


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Spaney & Maye
1006506, 1911

Jacobsen 106844
Hair Pin 1913

Stone 1,469,450
Hair comb 1923

Voskerchian 1,660,181
Cameo brooch 1928

Dufau 1,717,374
Brooch with
removable letters 1929

Kaufer 1,716,640
Brooch Bar Pin 1929

Johnson 1,722,423
Watch Fob
Brooch 1929

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