Granted Patent
Utility
US 4,932,676 · App. 07/153,623
Roller skate having three control modes
Inventor:
Reuben B. Klamer
Patented Case
View Patent ↗
Granted: Jun 12, 1990
Filed: Feb 8, 1988
Inventor
Reuben B. Klamer
Assignee (at issue)
The Quaker Oats Company
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.