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:
Mar. 25, 1997
Filed:
Mar. 10, 1992
A Edward Demerest, Middlesex, NJ (US);
Therma-Plate Corporation, Piscataway, NJ (US);
Abstract
Apparatus for producing an ovenable shaped article of polyethylene terephthalate wherein the polyethylene terephthalate is heated to a temperature in which it is in a thermoformable plastic state, formed as a sheet, locally cooled to form a skin on the surface of the sheet whale maintaining the sheet as a whole in the thermoformable plastic state and vacuum forming the shaped article within cavities on a rotating drum. The cavities are additionally provided with controlled heaters to heat the shaped article to impart thereto a degree of crystallinity of at least about 20% and the sheet is laterally and longitudinally tensioned after removal from the drum to prevent distortion.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile