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:
May. 30, 1989
Filed:
Nov. 10, 1983
Applicant:
Inventors:
Ermanno Bortolani, Milan, IT;
Enzo Vassarotti, Rolle, CH;
Assignee:
W. R. Grace & Co. - Conn., Duncan, SC (US);
Primary Examiner:
Int. Cl.
CPC ...
B65B / ;
U.S. Cl.
CPC ...
53427 ; 53453 ; 53509 ; 53559 ;
Abstract
By providing raised peripheral edges, preferably walls, for the supporting member of a vacuum skin package, a superior vacuum package is achieved when a product is vacuum packaged on such a supporting number. Wrinkles and weak spots are avoided. Preferably, the raised edges are formed in-line as the package is made.