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. 07, 1984
Filed:
May. 17, 1982
Applicant:
Inventors:
Edward L Burnett, Bay City, MI (US);
Eugene V Stack, Bay City, MI (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B27J / ;
U.S. Cl.
CPC ...
264127 ; 264330 ;
Abstract
Tetrafluoroethylene polymer tubes suitable for the preparation of lined pipe are prepared by ram extrusion wherein the tube is extruded above the sinter temperature and cooled below its crystalline melting point while radially unsupported to provide a tube of improved dimensional stability under thermal cycling.
Burnett, Edward. (1984). Method for the extrusion of tetrafluoroethylene polymer tubes (U.S. Patent No. 4430283). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4430283
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile