Granted Patent
Utility
US 4,604,110 · App. 06/707,119
Filter element, filter, and method for removing odors from indoor air
Inventor:
Stephen E. Frazier
Patented Case
View Patent ↗
Granted: Aug 5, 1986
Filed: Feb 28, 1985
Inventor
Stephen E. Frazier
Assignee (at issue)
General Time Corporation
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.