The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 10, 1980
Filed:
May. 19, 1978
Yasuo Maekawa, Tokyo, JP;
Citizen Watch Co., Ltd., Tokyo, JP;
Abstract
A watchglass fixing structure in which a watchglass fixing member is provided with an annular groove having a groove width approximately equal to the combined thicknesses of the outer diametric portion of a watchglass and the outer circumferential portion of a backing ring, a flange at the upper portion of said annular groove, the inner diameter of the flange being smaller than the outer diameter of said watchglass, and with an inner circumferential surface at the lower portion of said annular groove, the diameter of the inner circumferential surface being larger than the outer diameter of said watchglass. The watchglass is fitted into an upper half of said annular groove of said watchglass fixing member through a waterproof packing, while the outer circumferential portion of said backing ring is inserted into a lower half of said annular groove.