Granted Patent
Utility
US 5,290,465 · App. 07/887,988
Neopolyol derivatives and refrigerant compositions comprising them
Inventor:
Mahmood Sabahi
Patented Case
View Patent ↗
Granted: Mar 1, 1994
Filed: May 22, 1992
Inventor
Mahmood Sabahi
Assignee (at issue)
Ethyl Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.