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:
Jan. 06, 1976
Filed:
Sep. 23, 1974
Applicant:
Inventor:
Rene Addor, Geneva, CH;
Assignee:
Montres Rolex S.A., Geneva, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G04D / ;
U.S. Cl.
CPC ...
81-6 ;
Abstract
A tool for tightening and untightening screw-type bottoms or backs of watch casings in which the spindle by which the bottom is rotated is threaded to a tool stand using the same pitch of thread as that of the threads on the watchcase bottom, so that as the spindle is rotated it is displaced axially by the same amount as the bottom, thereby keeping the tool on the spindle in proper engagement with the bottom of the case.