Granted Patent
Utility
US 5,316,690 · App. 07/746,449
Hydrochlorofluorocarbons having OH rate constants which do not contribute substantially to ozone depletion and global warming
Inventor:
Chien C. Li
Patented Case
View Patent ↗
Granted: May 31, 1994
Filed: Aug 16, 1991
Inventor
Chien C. Li
Assignee (at issue)
AlliedSignal, Inc.
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.