Granted Patent
Utility
US 4,258,960 · App. 05/856,439
Wound glass filament reinforced resin slip sleeve liner
Inventor:
Bernard Harris
Patented Case
View Patent ↗
Granted: Mar 31, 1981
Filed: Dec 1, 1977
Inventor
Bernard Harris
Assignee (at issue)
REXNORD GMBH
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.