Granted Patent
Utility
US 5,846,412 · App. 08/560,442
Diffuser construction and mounting arrangement
Inventor:
Charles E. Tharp
Patented Case
View Patent ↗
Granted: Dec 8, 1998
Filed: Nov 17, 1995
Inventor
Charles E. Tharp
Assignee (at issue)
Environmental Dynamics, 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.