Granted Patent
Utility
US 5,255,811 · App. 07/950,019
Closure for a fish tank
Inventor:
Allen Simon
Patented Case
View Patent ↗
Granted: Oct 26, 1993
Filed: Sep 24, 1992
Inventor
Allen Simon
Assignee (at issue)
FOUR PAWS PRODUCTS, LTD.
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.