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:
May. 30, 1978
Filed:
Nov. 26, 1976
Applicant:
Inventors:
Anthonie Louis Zijlstra, Eindhoven, NL;
Anton Boekkooi, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
220 / ; 65 3 / ; 106 52 ; 106 53 ; 313221 ; 313317 ; 428218 ; 428410 ;
Abstract
A lamp, particularly for high powers, whose envelope consists of lime glass and in which in a 30.mu. thick surface layer Na.sup.+ - and/or Li.sup.+ ions are replaced by larger ions. This results in a compressive stress in the layer which is at least 7 kg/mm.sup.2. The envelope is as strong and resistant to temperature changes as hard glass.
Zijlstra, Anthonie. (1978). Lamps for high powers (U.S. Patent No. 4091951). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4091951
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile