Granted Patent
Utility
US 4,373,422 · App. 06/176,222
Reciprocating feed system
Inventors:
William J. Washburn, Hugh B. Thompson, Clifford E. La Fever
Patented Case
View Patent ↗
Granted: Feb 15, 1983
Filed: Aug 7, 1980
Inventors
William J. Washburn
Hugh B. Thompson
Clifford E. La Fever
Assignee (at issue)
Ford Motor Company
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.