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. 21, 1982
Filed:
Jan. 23, 1981
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 ...
B01J / ;
U.S. Cl.
CPC ...
264127 ;
Abstract
Tetrafluoroethylene polymer tubes are ram extruded. Desirable quality tubes are obtained by controlling the back pressure on the mandrel as the ram forces polymer to be fabricated into the barrel of the extruder.
Burnett, Edward. (1982). Method for the extrusion of tetrafluoroethylene polymer tubes (U.S. Patent No. 4350653). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4350653
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile