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:
Aug. 01, 1978
Filed:
Nov. 05, 1976
Katsumi Tanaka, Kawasaki, JP;
Shigeru Hashimoto, Yokohama, JP;
Shohei Ohtaki, Yokohama, JP;
Tadashi Ito, Yokohama, JP;
Tomonori Iwashita, Fuchu, JP;
Susumu Kozuki, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A device adapted for the purpose of enabling the use of presently available interchangeable photographic lenses in recently developed digitalized single lens reflex camera systems. This device is constructed in the form of an adaptor attachable to and detachable from the body of an interchangeable lens mount and capable, upon attachment to a conventional interchangeable lens, of providing information representing the full open F number of the interchangeable lens in the form of a coded digital signal. This signal is applied to a digitalized camera body associated therewith and provided, for example, with an inputting device adapted to receive the full open F number of the interchangeable lens as coded digital signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile