Granted Patent
Utility
US 5,852,841 · App. 08/069,037
Apparatus for automatic cleaning of a submerged surface
Inventor:
George Victor Rissik
Patented Case
View Patent ↗
Granted: Dec 29, 1998
Filed: Apr 27, 1998
Inventor
George Victor Rissik
Assignee (at issue)
Galago Limited and Kenneth Dinner
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.