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. 20, 2003
Filed:
Sep. 13, 2001
Applicant:
Inventors:
Sherman L. Rutherford, Portola Valley, CA (US);
Ronald M. Paitich, Auburn, CA (US);
Frederick P. Brechtel, Hayward, CA (US);
Robert J. Espinosa, Campbell, CA (US);
Assignee:
Duniway Stockroom Corporation, Mountain View, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01L 2/130 ;
U.S. Cl.
CPC ...
G01L 2/130 ;
Abstract
There is described a vacuum gauge in which an anode grid defines an ionization volume directly into which electrons are injected where they collide with gas molecules and atoms to form ions. A collector electrode is mounted within the ionization volume.