Granted Patent
Utility
US 5,236,280 · App. 07/577,741
Method and apparatus for improving sheet flow water rides
Inventor:
Thomas J. Lochtefeld
Patented Case
View Patent ↗
Granted: Aug 17, 1993
Filed: Sep 4, 1990
Inventor
Thomas J. Lochtefeld
Assignee (at issue)
Blade Loch, 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.