Granted Patent
Utility
US 4,479,371 · App. 06/449,142
Washing and extracting machine
Inventors:
Robert H. Fesmire, Warren T. Hansen
Patented Case
View Patent ↗
Granted: Oct 30, 1984
Filed: Dec 13, 1982
Inventors
Robert H. Fesmire
Warren T. Hansen
Assignee (at issue)
ELLIS
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.