Granted Patent
Utility
US 5,096,652 · App. 07/593,499
Method of manufacturing a multilayered molding
Inventors:
Akira Uchiyama, Naoaki Jimbo, Shizuo Shimizu
Patented Case
View Patent ↗
Granted: Mar 17, 1992
Filed: Oct 4, 1990
Inventors
Akira Uchiyama
Naoaki Jimbo
Shizuo Shimizu
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.