Granted Patent
Utility
US 4,286,443 · App. 06/135,473
Assured slow speed spin for fabric washing machine
Inventor:
William H. Hunter
Patented Case
View Patent ↗
Granted: Sep 1, 1981
Filed: Mar 31, 1980
Inventor
William H. Hunter
Assignee (at issue)
Maytag 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.