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:
Nov. 03, 1987
Filed:
Feb. 21, 1985
Applicant:
Inventors:
Assignee:
Toyo Communication Equipment Co. Ltd, Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01L / ; H01L / ;
U.S. Cl.
CPC ...
73702 ; 310370 ;
Abstract
A gas pressure sensor comprises a contour piezoelectric vibrator and the pressure of gas is detected by measuring an equivalent series resistance of the vibrator which is surrounded by the gas whose pressure is to be detected.