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. 13, 1995
Filed:
Apr. 06, 1994
Applicant:
Inventors:
Assignee:
Chinon Kabushiki Kaisha, Suwa, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354199 ; 354222 ;
Abstract
A camera viewfinder optical system is interlockingly connected with a rotatable cam ring used to zoom a camera lens barrel system unit forwardly in an optical axial direction thus eliminating a bulky cam portion on the outer surface of the cam ring so a more compact zoom lens barrel unit is possible.
Quick Actions:
Fukushima, Mitsuru. (1995). Zoom lens camera viewfinder (U.S. Patent No. 5424793). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5424793
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