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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.:

US 4007469 B1

PDFFull Text
Date of Patent:
Feb. 08, 1977

Filed:

Apr. 21, 1975

Photographic apparatus with plurality of selectively determinable

Applicant:
Inventors:

Edwin H Land, Cambridge, MA (US);

Richard C Kee, Chestnut Hill, MA (US);

Assignee:

Polaroid Corporation, Cambridge, MA (US);

Attorneys:

Roman; E. S.

Ericson; J. W.

Primary Examiner:

L T Hix

Assistant Examiner:

J A LaBarre

Int. Cl.
CPC ...
G03B / ; G03B / ;
U.S. Cl.
CPC ...
354 27 ; 354 / ; 354 33 ; 354 53 ; 354128 ; 354133 ;
Abstract

A camera is provided with a built-in electronic flash unit, a viewfinder for simultaneously framing an image and for selectively displaying a number of indications, a circuit for sensing the state of charge of the flash unit and the ambient light level, a pair of shutter buttons, and apparatus controlled by both the shutter buttons and the sensing circuit for selectively making a flash exposure, making an ambient light exposure, or displaying an appropriate indication to the operator.

Find Patent Forward Citations

Land, Edwin. (1977). Photographic apparatus with plurality of selectively determinable (U.S. Patent No. 4007469). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4007469

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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