Granted Patent
Utility
US 5,660,340 · App. 08/620,849
Rotary de-icer
Inventor:
Dean E. Baughman
Patented Case
View Patent ↗
Granted: Aug 26, 1997
Filed: Mar 20, 1996
Inventor
Dean E. Baughman
Assignee (at issue)
Beehive Company LLC
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.