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:
Nov. 12, 1991
Filed:
Mar. 20, 1989
Applicant:
Inventor:
E Robert Fretz, Jr, Corning, NY (US);
Assignee:
Corning Incorporated, Corning, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; G02C / ;
U.S. Cl.
CPC ...
428212 ; 428213 ; 428215 ; 428415 ; 428417 ; 428428 ; 428429 ; 4284735 ; 428414 ; 351163 ; 351166 ; 351177 ;
Abstract
There is disclosed an improvement of the three layer laminated lens structure of U.S. Pat. No. 4,793,703 whereby the adhesive inerlayer is more tightly bonded to the outer plastic and glass layers by reactive groups on the surfaces of each layer. This controls a problem of delayed delamination.