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. 08, 1991
Filed:
Mar. 02, 1990
Applicant:
Inventors:
Robert A Dubois, Marion, OH (US);
Richard A Caron, Long Meadow, MA (US);
Assignee:
Greif Brothers Corporation, Delaware, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
B65D / ;
U.S. Cl.
CPC ...
220403 ; 220408 ; 220410 ;
Abstract
A two-part drum includes a blow molded self supporting plastic liner with circumferential reinforcing grooves, and a shell. The shell and the liner have matching cross-sections defined by curved sidewalls and curved sections cooperating to form a nominally rectangular or square cross-section.