Granted Patent
Utility
US 5,557,017 · App. 08/318,258
Method for producing a hydrofluorocarbon
Inventors:
Kazuya Oharu, Ryuji Seki, Seisaku Kumai
Patented Case
View Patent ↗
Granted: Sep 17, 1996
Filed: Oct 5, 1994
Inventors
Kazuya Oharu
Ryuji Seki
Seisaku Kumai
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.