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:
Aug. 30, 1983
Filed:
Jun. 17, 1981
Applicant:
Inventors:
Sam D Nehmey, Lorain, OH (US);
James W Summers, Bay Village, OH (US);
Assignee:
The B. F. Goodrich Company, Akron, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D / ; B29F / ;
U.S. Cl.
CPC ...
264 53 ; 264D / ; 366319 ; 366323 ; 366324 ; 425208 ; 425209 ; 4258 / ; 521145 ;
Abstract
Cellular chlorinated polyvinyl chloride resin is made in an extruder that is characterized by a combination of multiple flights and a plurality of open slots in the mixing section to facilitate mixing of the resin and a blowing agent whereby a rigid thermoplastic cellular product of low density is made that has a predominantly closed cell structure.
Nehmey, Sam. (1983). Method and apparatus for extruding foam polymeric materials involving (U.S. Patent No. 4401612). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4401612
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile