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:
Dec. 07, 1999
Filed:
Feb. 23, 1998
Applicant:
Inventors:
Dennis P Buttleman, Athens, PA (US);
Phillip D Wurzler, Laceyville, PA (US);
Kenneth D Brown, Ulster, PA (US);
Assignee:
Osram Sylvania Inc., Danvers, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21C / ;
U.S. Cl.
CPC ...
72467 ; 722531 ;
Abstract
A method and apparatus has been developed for the work hardening of tungsten alloy rods while achieving a high degree of diametrical control. The method employs multiple extrusions through extrusion dies designed to prevent cracking and delamination of the rods.
Buttleman, Dennis. (1999). Extrusion die for tungsten alloys (U.S. Patent No. 5996393). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5996393
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile