Granted Patent
Utility
US 5,672,663 · App. 08/594,045
Thermoplastic compositon with a granular surface appearance like marble
Inventors:
Yoshio Ohtsuka, Katsumi Oishi
Patented Case
View Patent ↗
Granted: Sep 30, 1997
Filed: Jan 30, 1996
Inventors
Yoshio Ohtsuka
Katsumi Oishi
Assignee (at issue)
General Electric Company
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.