Granted Patent
Utility
US 4,722,996 · App. 06/849,857
Under-hood material for motorcars comprising polyamide resin having hydrocarbon end groups
Inventors:
Hideo Kanai, Yukinobu Murakami, Norimichi Koga
Patented Case
View Patent ↗
Granted: Feb 2, 1988
Filed: Apr 9, 1986
Inventors
Hideo Kanai
Yukinobu Murakami
Norimichi Koga
Assignee (at issue)
Mitsubishi Chemical 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.