Granted Patent
Utility
US 6,407,469 · App. 09/451,561
Controller system for pool and/or spa
Inventors:
David J. Cline, Cindy Otto, Paul Rosenau
Patented Case
View Patent ↗
Granted: Jun 18, 2002
Filed: Nov 30, 1999
Inventors
David J. Cline
Cindy Otto
Paul Rosenau
Assignee (at issue)
Balboa Instruments, 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.