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:
Oct. 20, 1981
Filed:
Oct. 17, 1979
Applicant:
Inventors:
Stephen F Kimball, North Andover, MA (US);
Peter R Gagnon, Salem, MA (US);
Assignee:
GTE Products Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01K / ;
U.S. Cl.
CPC ...
313222 ; 313178 ; 313271 ; 313316 ;
Abstract
Tungsten halogen incandescent lamps comprise tungsten filaments having different tungsten evaporation rates during normal operation. The filaments are supported on lead-in wires made of an alloy including tantalum.
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Kimball, Stephen. (1981). Tungsten halogen lamp having lead-in wire comprising tantalum alloy (U.S. Patent No. 4296351). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4296351
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile