Granted Patent
Utility
US 4,664,645 · App. 06/828,803
Blade shaft drive assembly
Inventors:
Wendell C. Muck, Darrell A. Yelton
Patented Case
View Patent ↗
Granted: May 12, 1987
Filed: Feb 12, 1986
Inventors
Wendell C. Muck
Darrell A. Yelton
Assignee (at issue)
Federal-Mogul 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.