Granted Patent
Utility
US 5,401,401 · App. 08/003,803
Hang on tank canister filter
Inventors:
Roy S. Hickok, Charles O. Fuerst
Patented Case
View Patent ↗
Granted: Mar 28, 1995
Filed: Jan 13, 1993
Inventors
Roy S. Hickok
Charles O. Fuerst
Assignee (at issue)
Aquaria, 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.