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:
Sep. 19, 1995
Filed:
Mar. 24, 1994
Applicant:
Inventor:
Gregg A Hebert, Conyers, GA (US);
Assignee:
Mobil Oil Corporation, Fairfax, VA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264163 ; 264321 ; 264322 ; 425 / ; 425292 ; 4258 / ;
Abstract
A thermoforming technique for making a shaped article from a web of polystryrene foam sheet or the like, with simultaneous forming and perforation of the article. Serrated cutter and spaced mandrel elements mounted in opposing mold sections provide a perforated pattern in the sheet.