Granted Patent
Utility
US 5,833,792 · App. 08/760,200
Method for producing a laminated thermoplastic resin film, a laminated thermoplastic resin film and a thermally produced molding of the same
Inventors:
Akira Funaki, Katsumi Uchiyama, Tohru Yukumoto, Atsushi Fujii
Patented Case
View Patent ↗
Granted: Nov 10, 1998
Filed: Dec 4, 1996
Inventors
Akira Funaki
Katsumi Uchiyama
Tohru Yukumoto
Atsushi Fujii
Assignee (at issue)
Idemitsu Petrochemical Co., 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.