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:
Jun. 06, 1989
Filed:
Jan. 30, 1987
Applicant:
Inventor:
Michael S Foster, Los Angeles, CA (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
B29D / ; B32B / ;
U.S. Cl.
CPC ...
156209 ; 1562728 ; 264 13 ; 264-14 ; 264-25 ; 264 25 ; 264 78 ; 264106 ; 264220 ; 264284 ; 264D / ; 427 531 ;
Abstract
Compact discs are continuously mass produced by continuously rotating a master roller about whose periphery a plurality of optical disc patterns are sequentially arranged in order to form inverse patterns on an elongated film fed to the roller at successive contact locations spaced apart of one another lengthwise of the film during each rotation. Each optical disc has a metallized layer which is protected from damage by the provision of sheets of non-negligible thickness.