Granted Patent
Utility
US 4,563,622 · App. 06/690,401
Simple brushless DC fan motor
Inventors:
Clyde J. Deavers, James Reffelt
Patented Case
View Patent ↗
Granted: Jan 7, 1986
Filed: Jan 10, 1985
Inventors
Clyde J. Deavers
James Reffelt
Assignee (at issue)
Rotron, 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.