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:
Dec. 31, 1991
Filed:
Jun. 11, 1990
Applicant:
Inventors:
Ermanno Bortolani, Milan, IT;
Enzo Vassarotti, Rolle, CH;
Assignee:
W. R. Grace & Co.-Conn., Duncan, SC (US);
Primary Examiner:
Int. Cl.
CPC ...
B65D / ; B65B / ;
U.S. Cl.
CPC ...
2065248 ; 53427 ; 53433 ; 53509 ; 206497 ; 426125 ; 426396 ;
Abstract
In a vacuum skin package wrinkles and weak spots are avoided by providing a tray as the support or backing member rather than a flat sheet, the angle of the walls as they diverge outwardly being 91.degree. to 160.degree.. Especially useful is such a package when provided with a lid for stacking purposes.