Granted Patent
Utility
US 5,728,293 · App. 08/489,406
External filter assembly for aquariums
Inventors:
Giacomo Guoli, Edmund J. Mowka, Jr.
Patented Case
View Patent ↗
Granted: Mar 17, 1998
Filed: Jun 12, 1995
Inventors
Giacomo Guoli
Edmund J. Mowka, Jr.
Assignee (at issue)
Aquarium Systems, 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.