Granted Patent
Utility
US 5,446,097 · App. 08/123,983
Vulcanizable rubber composition and vulcanized rubber
Inventors:
Shuichi Nonaka, Norihito Ueki, Takashi Mishima
Patented Case
View Patent ↗
Granted: Aug 29, 1995
Filed: Sep 21, 1993
Inventors
Shuichi Nonaka
Norihito Ueki
Takashi Mishima
Assignee (at issue)
Mitsui Petrochemical Industries, 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.