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:
Sep. 17, 1991
Filed:
Jun. 23, 1989
Applicant:
Inventors:
Hans D Grasshoff, Hamburg, DE;
Vladislav Synek, Hamburg, DE;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M / ;
U.S. Cl.
CPC ...
252 496 ; 252 498 ; 252 67 ; 252 68 ;
Abstract
A lubricant for refrigerators which contains phosphate, phosphite and/or silicone additives which impart stability and thermal stability to the lubricant.
Grasshoff, Hans. (1991). Lubricant composition for refrigerator systems (U.S. Patent No. 5049292). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5049292
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile