Granted Patent
Utility
US 4,742,110 · App. 06/919,150
Polyterephthalamide composition having gel proportion, Fg, of 3-90%
Inventors:
Takeshi Sakashita, Yurimasa Zenitani, Akio Ikeda, Kenichi Nishiwaki
Patented Case
View Patent ↗
Granted: May 3, 1988
Filed: Oct 7, 1986
Inventors
Takeshi Sakashita
Yurimasa Zenitani
Akio Ikeda
Kenichi Nishiwaki
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.