Granted Patent
Utility
US 5,292,465 · App. 07/980,741
Process for preparing composite foamed molded article
Inventors:
Tosio Kobayashi, Mitsuru Watari, Toru Inoue
Patented Case
View Patent ↗
Granted: Mar 8, 1994
Filed: Nov 24, 1992
Inventors
Tosio Kobayashi
Mitsuru Watari
Toru Inoue
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.