Granted Patent
Utility
US 5,293,103 · App. 07/478,604
Quiet fan speed control with linear adjustment actuator
Inventor:
Robert S. Hanna
Patented Case
View Patent ↗
Granted: Mar 8, 1994
Filed: Feb 12, 1990
Inventor
Robert S. Hanna
Assignee (at issue)
Lutron Electronics Co., 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.