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:
Mar. 15, 1994
Filed:
Feb. 03, 1992
Applicant:
Inventors:
Rajiv R Singh, Williamsville, NY (US);
David P Wilson, East Amherst, NY (US);
Earl A Lund, West Seneca, NY (US);
Ian R Shankland, Williamsville, NY (US);
Assignee:
AlliedSignal Inc., Morristownship, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
252 67 ; 62114 ;
Abstract
Compositions comprising difluoromethane, 1,1,1,2-tetrafluoroethane and a member selected from the group consisting of 1,1-difluoroethane, 1,1,1-trifluoroethane, propane and dimethyl ether having a vapor pressure from about 12.2 psia to about 18.4 psia at -40.degree. F., are useful as refrigerants.