Granted Patent
Utility
US 5,165,941 · App. 07/728,700
Extruder apparatus and process for compounding thermoplastic resin and fibres
Inventor:
Ronald Clare Hawley
Patented Case
View Patent ↗
Granted: Nov 24, 1992
Filed: Jul 11, 1991
Inventor
Ronald Clare Hawley
Assignee (at issue)
Composite Products, Inc.
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.