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:
Jun. 30, 1987
Filed:
Nov. 14, 1985
Applicant:
Inventor:
Charles R Murray, Toronto, CA;
Assignee:
C-I-L, Inc., North York, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65D / ; B29C / ;
U.S. Cl.
CPC ...
428 35 ; 428 36 ; 428516 ; 264564 ;
Abstract
A shipping sack having walls formed of uni-axially oriented linear low density polyethylene film wherein said film is produced by blowing and cold drawing said polyethylene at a draw ratio to blow ratio of greater than 1:1, preferably, between 2:1 and 5:1. The sack can be used as a tubular shipping sack for bulky, lightweight material or, if optionally provided with a double inner film of low density polyethylene, as a heavy duty sack. The sacks have improved physical properties.