Granted Patent
Utility
US 4,867,728 · App. 07/255,368
Toy top launcher
Inventor:
David E. Moomaw
Patented Case
View Patent ↗
Granted: Sep 19, 1989
Filed: Oct 11, 1988
Inventor
David E. Moomaw
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.