Granted Patent
Utility
US 5,387,664 · App. 08/006,984
Higher .alpha.-olefin copolymer, vibration-insulating rubber molded product, and process for the preparaton of the rubber molded product
Inventors:
Masaaki Kawasaki, Toshimasa Takata, Keiji Okada, Kazuhiko Murata, Mitsuhiko Onda, Tetsuo Tojo
Patented Case
View Patent ↗
Granted: Feb 7, 1995
Filed: Jan 21, 1993
Inventors
Masaaki Kawasaki
Toshimasa Takata
Keiji Okada
Kazuhiko Murata
Mitsuhiko Onda
Tetsuo Tojo
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.