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:
Mar. 03, 1981
Filed:
Jul. 05, 1979
Applicant:
Inventor:
Robert D Fisher, Cupertino, CA (US);
Assignee:
Memorex Corporation, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; B32B / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
428626 ; 428432 ; 428433 ; 428631 ; 428434 ; 428469 ; 428632 ; 428472 ; 428642 ; 428646 ; 428649 ; 428650 ; 428651 ; 428656 ; 428666 ; 428900 ; 428928 ; 428937 ; 428939 ; 209192 ; 427128 ; 427129 ; 427130 ; 427131 ; 427132 ; 427327 ; 427328 ; 427330 ; 4273744 ; 4273747 ; 4273768 ; 427405 ; 4274194 ; 427421 ; 427423 ; 428 64 ; 428428 ;
Abstract
A structure and method for manufacturing said structure are disclosed for producing a surface of improved smoothness. The result is achieved by applying to the substrate a layer of low melting point metal or low melting point glass and elevating the composite structure to the melting point of said low melting point metal or low melting point glass. The said metal or glass thereupon spreads to a smooth surface of greatly improved roughness.
Fisher, Robert. (1981). Disc having substrate, intermediate layer and magnetically sensitive (U.S. Patent No. 4254189). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4254189
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile