Granted Patent
Utility
US 5,393,170 · App. 08/074,300
Method and apparatus for improving sheet flow water rides
Inventor:
Thomas J. Lochtefeld
Patented Case
View Patent ↗
Granted: Feb 28, 1995
Filed: Jun 9, 1993
Inventor
Thomas J. Lochtefeld
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.