Granted Patent
Utility
US 6,245,293 · App. 09/172,637
Cleaning and maintaining a drain pan in an air handling system
Inventors:
Forrest B. Fencl, Robert Scheir
Patented Case
View Patent ↗
Granted: Jun 12, 2001
Filed: Oct 14, 1998
Inventors
Forrest B. Fencl
Robert Scheir
Assignee (at issue)
Steril-Aire USA, 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.