Granted Patent
Utility
US 5,320,683 · App. 07/941,269
Azeotropic or azeotropic-like composition of hydrochlorofluoropropane
Inventors:
Shunichi Samejima, Kenroh Kitamura, Naohiro Watanabe, Teruo Asano, Toru Kamimura, Shinsuke Morikawa
Patented Case
View Patent ↗
Granted: Jun 14, 1994
Filed: Sep 4, 1992
Inventors
Shunichi Samejima
Kenroh Kitamura
Naohiro Watanabe
Teruo Asano
Toru Kamimura
Shinsuke Morikawa
Assignee (at issue)
ASAHI GLASS CO., LTD.
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.