Granted Patent
Utility
US 4,787,991 · App. 06/919,389
Resin composition having lubricating properties
Inventors:
Mituharu Morozumi, Masaki Egami
Patented Case
View Patent ↗
Granted: Nov 29, 1988
Filed: Oct 16, 1986
Inventors
Mituharu Morozumi
Masaki Egami
Assignee (at issue)
ASAHI GLASS 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.