Granted Patent
Utility
US 4,624,820 · App. 06/729,871
Molding of composite materials
Inventor:
David J. Barraclough
Patented Case
View Patent ↗
Granted: Nov 25, 1986
Filed: May 2, 1985
Inventor
David J. Barraclough
Assignee (at issue)
ROLLS-ROYCE plc
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.