Granted Patent
Utility
US 4,187,347 · App. 05/673,724
Encapsulated impregnated rovings
Inventor:
Richard L. Brook
Patented Case
View Patent ↗
Granted: Feb 5, 1980
Filed: Apr 5, 1976
Inventor
Richard L. Brook
Assignee (at issue)
DeSoto, 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.