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. 07, 2003
Filed:
Feb. 27, 2001
Applicant:
Inventor:
Robert B. DeMatteis, Grass Valley, CA (US);
Assignee:
Bob Dematteis Co., Grass Valley, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65B 4/326 ; B65D 3/301 ;
U.S. Cl.
CPC ...
B65B 4/326 ; B65D 3/301 ;
Abstract
In the process of die-cutting bag stacks to form individual bag tops, die-cut handle apertures, or other mounting apertures, die blade configurations forming the vent lines of an array of vent apertures are also used to bond the outer surfaces of the front and rear bag walls together. The die-cutting operation selectively bonds the successive front and rear bag walls together at or adjacent the cut edges of the vent lines, thereby allowing the bags in a bag stack to subsequently self-open when dispensed.
DeMatteis, Robert. (2003). Self-opening bag (U.S. Patent No. 6502371). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6502371
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile