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Title: US4196981: Eyeglasses having magnetically positioned flip-up lenses
[ Derwent Title ]


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US United States of America
A PATENT [FROM BEGIN UNTIL END 2000] or PATENT ISSUED AFTER 1ST PUB. WITHIN THE TVPP i

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Inventor: WALDROP JEFFERSON P; United States of America

Assignee: WALDROP JEFFERSON P
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Published / Filed: 1980-04-08 / 1978-06-21

Application Number: US1978000917684

IPC Code: Advanced: G02C 1/04; G02C 9/02;

ECLA Code: G02C1/04; G02C9/02; S02C200/02;

U.S. Class: 351/059.000;

Priority Number:
1978-06-21  US1978000917684

Abstract:     These eyeglasses consist primarily of a frame, in the bridge portion of which, is a cylindrical magnet that is received within a sleeve of ferrous metal. The sleeve structure includes a flat connecting member, which is rigidly secured to a lens supporting member, so as to enable the wearer to pivot the lenses upward, or downward, as desired.

       
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Buy PDF - 3pp US4196981 1980-04-08  1978-06-21    Eyeglasses having magnetically positioned flip-up lenses
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Forward References: Show 55 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (55)   |   Backward references (0)   |   Citation Link

       
Other Abstract Info: None

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