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:
Jul. 01, 1980
Filed:
Jan. 11, 1979
Applicant:
Inventors:
William M Scantlin, Woodbury, MN (US);
Lawrence M Clemens, Minneapolis, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428413 ; 427 541 ; 427130 ; 427131 ; 427132 ; 428480 ; 428900 ;
Abstract
Cationically polymerized epoxy resin subbing layer for the magnetizable and the backside coating, if any, of polyester-film-backed magnetic recording tape acts as a barrier against extraction and migration of low-molecular-weight components of the polyester film backing which otherwise would tend to crystallize on the surface of the magnetizable coating.
Scantlin, William. (1980). Polyester-film backed magnetic recording tape having epoxy subbing layer (U.S. Patent No. 4210703). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4210703
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile