Granted Patent
Utility
US 5,502,132 · App. 08/194,124
Process for producing a perfluoro copolymer
Inventors:
Norihide Sugiyama, Hidenobu Murohushi, Masaru Nakamura
Patented Case
View Patent ↗
Granted: Mar 26, 1996
Filed: Feb 9, 1994
Inventors
Norihide Sugiyama
Hidenobu Murohushi
Masaru Nakamura
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.