Granted Patent
Utility
US 5,783,753 · App. 08/837,376
Vane anemometer having a modular impeller assembly
Inventor:
Richard Kellerman
Patented Case
View Patent ↗
Granted: Jul 21, 1998
Filed: Apr 17, 1997
Inventor
Richard Kellerman
Assignee (at issue)
NIELSEN-KELLERMAN, CO.
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.