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. 11, 1980
Filed:
Sep. 28, 1978
Applicant:
Inventors:
Craig R Hof, Hopatcong, NJ (US);
Roy A Ulin, Wyckoff, NJ (US);
Assignee:
Akzona Incorporated, Asheville, NC (US);
Primary Examiner:
Int. Cl.
CPC ...
G01K / ; G01K / ; G01K / ; G01K / ; C09K / ;
U.S. Cl.
CPC ...
73356 ; 2323 / ; 73358 ; 116201 ; 116206 ; 116207 ; 116216 ; 116217 ; 116219 ; 252408 ; 422 55 ; 422 56 ; 422 57 ; 422 58 ; 422119 ;
Abstract
Novel and stable compositions of matter are disclosed which change color sharply upon a transition from a liquid state to a solid state or from a solid state to a liquid state, which change of state is at substantially a predetermined temperature corresponding to a temperature to be measured. The constituents of the novel compositions of matter comprise: