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:
Sep. 20, 1983
Filed:
Oct. 29, 1981
Applicant:
Inventors:
Maurice D Coutts, Plainsboro, NJ (US);
Dennis L Matthies, Princeton, NJ (US);
Assignee:
RCA Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B29D / ;
U.S. Cl.
CPC ...
264107 ; 264233 ; 425810 ;
Abstract
High density information discs, such as video discs, which have been treated with an ammonium salt become resistant to and stable under conditions of high relative humidity, even after repeated exposure to such conditions for extended periods of time. The treatment with the ammonium salt is accomplished by use of a bath of an aqueous solution of the ammonium salt, with the preferred ammonium salt being ammonium chloride.
Coutts, Maurice. (1983). Video disc processing (U.S. Patent No. 4405541). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4405541
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile