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:
Aug. 19, 2003
Filed:
Oct. 02, 2000
Applicant:
Inventors:
Richard L. Powell, Cheshire, GB;
John Edward Poole, Cheshire, GB;
John Derek Capper, Cheshire, GB;
James Victor Thomas, Nova Scotia, GB;
Assignee:
Refrigerant Products, Ltd., Manchester, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25D 2/500 ;
U.S. Cl.
CPC ...
F25D 2/500 ;
Abstract
A refrigerant composition comprising a hydrofluorocarbon component including 1,1,1,2-tetrafluoroethane (HCFC 134a), the composition further comprising an additive selected from a saturated hydrocarbon or mixture thereof boiling in the range −5 to +70° C.