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:
Jan. 01, 1985
Filed:
Feb. 07, 1983
Applicant:
Inventors:
Joseph C Hsu, Neenah, WI (US);
Robert A Steen, Appleton, WI (US);
Assignee:
American Can Company, Greenwich, CT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B65D / ; B32B / ;
U.S. Cl.
CPC ...
426127 ; 2065242 ; 428 35 ; 428516 ; 428 36 ; 428483 ; 4284761 ; 426415 ; 229 / ;
Abstract
An improved package, including an oil-containing product, includes a multiple layer packaging sheet material which has reduced sensitivity to cockling. The multiple layer sheet material includes a layer which is susceptible to being swelled when in contact with oil, giving a cockled appearance. With reference to the package structure, the sheet material also includes a layer which impedes penetration of oil, the impeding layer being between the oil-containing product and the layer which is susceptible to being swelled when in contact with oil. The impeding layer comprises polypropylene.