Granted Patent
Utility
US 5,558,883 · App. 08/365,121
Mold design and process for producing a multilayer part by injection process molding
Inventors:
Tsunetoshi SHINADA, Katsuo Wada, Masaki Misumi, Satoru Kurono
Patented Case
View Patent ↗
Granted: Sep 24, 1996
Filed: Dec 28, 1994
Inventors
Tsunetoshi SHINADA
Katsuo Wada
Masaki Misumi
Satoru Kurono
Assignees (at issue)
Mitsui Toatsu Chemicals, Incorporated
MORIROKU 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.