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. 09, 1992
Filed:
Jan. 04, 1991
Applicant:
Inventors:
Rolland D Savage, Mentor, OH (US);
John P Callahan, Irvine, CA (US);
Assignee:
Gould Inc., Eastlake, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428 76 ; 428192 ; 428198 ; 428457 ; 428461 ; 428480 ; 428516 ; 428212 ; 428332 ; 428334 ; 428335 ; 428 40 ; 428 42 ; 428901 ; 428906 ; 156148 ; 156150 ; 156233 ; 1562751 ;
Abstract
A conductive copper foil for use in preparing printed circuit boards is protected from damage during storage, shipment and further processing by covering one side of the foil with a sheet of polyethylene film. The film is removably joined with the foil by an adhesive material placed between the film and the foil in a marginal area of the latter. The film is selected to be sufficiently resistant to laminating temperature and pressure conditions so as to remain in its covering, protecting relationship to the foil and avoid sticking to the laminating press plate and retain its removability from the foil after lamination.