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:
Feb. 09, 1982
Filed:
Jan. 25, 1980
Applicant:
Inventor:
Rosemary Rourke, Newtown, CT (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B29C / ;
U.S. Cl.
CPC ...
428119 ; 264164 ; 425384 ; 425445 ; 425812 ; 428116 ;
Abstract
A process for producing a clear surface on expanded thermoformable material is disclosed. A film layer of non bondable plastic material is disposed adjacent the clear plastic material to be expanded. After the expansion process the film layer is removed leaving a clear smooth surface.