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:
Oct. 27, 1981
Filed:
Apr. 24, 1979
Applicant:
Inventor:
R Calvin Owen, Jr, Belmont, MA (US);
Assignee:
Polaroid Corporation, Cambridge, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ; G02B / ;
U.S. Cl.
CPC ...
350432 ; 350429 ; 350465 ;
Abstract
A method and optical apparatus by which a camera initially adapted to utilize a zooming optical system of the type which includes a variable focus, afocal zoom lens section and a prime lens section is adapted to utilize only the prime lens section of the zooming optical system.
Owen, Jr, R. (1981). Optical apparatus and method for changing a zoom camera to a fixed focus (U.S. Patent No. 4297007). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4297007
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile