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:
Oct. 09, 1979
Filed:
Feb. 15, 1978
Applicant:
Inventor:
Richard L Miklos, Afton, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
428336 ; 428339 ; 428461 ; 428464 ; 428900 ;
Abstract
Improved reflective sense marker less than 2.5 micrometers in thickness including (a) a reflective thin-film metal coating, (b) a thin layer of adhesive bonding the thin-film coating to the back side of a magnetic recording tape, and (c) a thin, tough, abrasion-resistant transparent polymeric protective layer such as a copolymer of ethylene and vinyl acetate covering the thin-film coating.