Granted Patent
Utility
US 6,505,572 · App. 09/698,839
Ballast boat chair for wake enhancement
Inventors:
John Seipel, Mike Seipel
Patented Case
View Patent ↗
Granted: Jan 14, 2003
Filed: Oct 27, 2000
Inventors
John Seipel
Mike Seipel
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.