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:
May. 23, 1989
Filed:
Mar. 11, 1988
Keiji Ohsawa, Yokohama, JP;
Nikon Corporation, Tokyo, JP;
Abstract
A single lens reflex camera having a replaceable view finder unit, wherein it includes an electric circuit therein, said electric circuit capable of being connected to an electric circuit in a camera body through the medium of contact means is characterized in that the replaceable view finder unit includes a housing into which at least a pentagonal roof prism and an eye piece portion are arranged, and a signal contact of a contact means for electrically connecting the electric circuit in the view finder unit to the electric circuit in the camera body is arranged on a bottom of the housing below the eye piece portion.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile