Granted Patent
Utility
US 6,815,918 · App. 10/209,164
Pool cleaning method and apparatus
Inventors:
Joseph Porat, Igor Fridman
Patented Case
View Patent ↗
Granted: Nov 9, 2004
Filed: Jul 30, 2002
Inventors
Joseph Porat
Igor Fridman
Assignee (at issue)
AQUA PRODUCTS, 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.