Granted Patent
Utility
US 5,156,786 · App. 07/546,806
Method for manufacuring fan blades
Inventor:
Robert C. Monroe
Patented Case
View Patent ↗
Granted: Oct 20, 1992
Filed: Jul 2, 1990
Inventor
Robert C. Monroe
Assignee (at issue)
Hudson Products Corporation
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.