Granted Patent
Utility
US 4,997,707 · App. 07/442,912
Laminated molded articles and processes for preparing same
Inventors:
Yasuhiko Otawa, Toshiyuki Maeda, Noboru Sakamaki, Tooru Takehara
Patented Case
View Patent ↗
Granted: Mar 5, 1991
Filed: Nov 28, 1989
Inventors
Yasuhiko Otawa
Toshiyuki Maeda
Noboru Sakamaki
Tooru Takehara
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.