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:
Jan. 13, 1976
Filed:
Aug. 08, 1974
Applicant:
Inventor:
Karl Gebhardt, Stolberg-Busbach an Kurths-Muhle, DT;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03B / ; C03B / ;
U.S. Cl.
CPC ...
65 32 ; 65 34 ; 65 36 ; 65152 ;
Abstract
In the manufacture of miniature incandescent lamps having a pinched glass cap, an inert cooling gas is blown through the exhaust tube during the pinching operation so as to keep the exhaust tube open.