Granted Patent
Utility
US 4,587,300 · App. 06/744,454
Low density, polybutadiene based, wet filament winding resin
Inventor:
Robert Valentine
Patented Case
View Patent ↗
Granted: May 6, 1986
Filed: Jun 13, 1985
Inventor
Robert Valentine
Assignee (at issue)
HERCULES LLC
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.