Granted Patent
Utility
US 5,214,125 · App. 07/762,333
Polyamide from 3,5-tricyclo[5.2.1.0.sup.2.6 ]decane dicarboxylic acid
Inventors:
Makoto Mitani, Toshimasa Takata
Patented Case
View Patent ↗
Granted: May 25, 1993
Filed: Sep 19, 1991
Inventors
Makoto Mitani
Toshimasa Takata
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.