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:
Aug. 08, 1989
Filed:
Nov. 21, 1988
Applicant:
Inventor:
Philip J White, Georgetown, MA (US);
Assignee:
GTE Products Corporation, Danvers, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313553 ; 2521816 ;
Abstract
An unsaturated vapor pressure high pressure sodium lamp includes an arc tube positioned within an evacuted glass envelope and containing a gas fill including mercury and sodium and a getter having a free energy of formation per mole of oxygen more negative than that of sodium oxide.
Quick Actions:
White, Philip. (1989). Unsaturated vapor pressure type high pressure sodium lamp (U.S. Patent No. 4855643). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4855643
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile