Granted Patent
Utility
US 4,636,142 · App. 06/609,543
Rotating fan apparatus
Inventor:
Bernard R. Baranski
Patented Case
View Patent ↗
Granted: Jan 13, 1987
Filed: May 11, 1984
Inventor
Bernard R. Baranski
Assignee (at issue)
Household Manufacturing, Inc.
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.