Granted Patent
Utility
US 5,690,093 · App. 08/375,554
Ventilator controller with variably adjustable fan and light
Inventors:
Anthony L. Schrank, Robert C. Voosen, Chris Hentschel
Patented Case
View Patent ↗
Granted: Nov 25, 1997
Filed: Jan 19, 1995
Inventors
Anthony L. Schrank
Robert C. Voosen
Chris Hentschel
Assignee (at issue)
NuTone 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.