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:
Apr. 13, 1976
Filed:
Jun. 05, 1974
Applicant:
Inventors:
Ivan Dimov Nikolov, Sofia, BG;
Stefan Georgiev Semerdjiev, Sofia, BG;
Dragan Iliev Nenov, Sofia, BG;
Nikolay Tihomirov Popov, Sofia, BG;
Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29F / ; B29F / ;
U.S. Cl.
CPC ...
2221 / ; 219233 ; 219307 ; 222568 ; 4253 / ;
Abstract
An apparatus for the production of articles with a compact smooth skin and a cellular core from polymer materials, which contain blowing agents, by injection molding or extrusion wherein the apparatus contains an electric heating element within a channel through which the polymeric material is passed.
Nikolov, Ivan. (1976). Device for the production of articles with a compact smooth skin and a (U.S. Patent No. 3949905). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3949905
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile