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:
Feb. 13, 1996
Filed:
Jan. 26, 1994
Applicant:
Inventors:
Edward W Bryant, Lawrence, KS (US);
Burton T Mackenzie, Lawrence, KS (US);
Assignee:
Camco International Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01K / ; G01K / ; G01K / ;
U.S. Cl.
CPC ...
116217 ; 374160 ; 374161 ; 252962 ;
Abstract
A maximum temperature indicator comprises a body of inexpensive and highly durable polymeric material adapted to be affixed to a support, such as within a mechanical device. The polymeric material undergoes a detectable physical change unique to a maximum temperature to which the polymeric material was exposed. After exposure, the polymeric material is easily tested to accurately determine the maximum temperature that the sample was exposed to.