Granted Patent
Utility
US 6,622,318 · App. 09/753,247
Pool cover system with retracting and adjacent extending mechanisms operable by a portable power source
Inventor:
Wesley L. Mathis
Patented Case
View Patent ↗
Granted: Sep 23, 2003
Filed: Dec 29, 2000
Inventor
Wesley L. Mathis
Assignee (at issue)
Pool Cover Specialists National, 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.