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. 25, 1992
Filed:
Jul. 29, 1991
Applicant:
Inventor:
Frederick S Gasoi, Roxboro, CA;
Assignee:
National Film Board of Canada, St-Laurent, CA;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ;
U.S. Cl.
CPC ...
352244 ; 352-5 ; 352 27 ;
Abstract
A method is provided for assessing the effect of exposure conditions on the recording and reproduction of an optical sound track, comprising,