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. 26, 1982
Filed:
Jul. 10, 1980
Karl Josephy, Los Angeles, CA (US);
Richard R Baggarley, Arcadia, CA (US);
Avery International Corporation, San Marino, CA (US);
Abstract
A process and apparatus for forming a line of weakness in the protective backing of an adhesive laminate is disclosed. The process is performed by generating a laser beam of sufficient energy to vaporize at least a portion of the protective backing of an adhesive laminate. The laser beam is focused in a focal line extending across the protective backing for a time sufficient for vaporizing at least a portion of the protective backing. At least a portion of the protective backing is vaporized with the laser beam to a depth sufficient for forming a line of weakness in the protective backing along the focal line.