Granted Patent
Utility
US 4,701,147 · App. 06/923,666
Toy simulated power drill workshop
Inventor:
David E. Moomaw
Patented Case
View Patent ↗
Granted: Oct 20, 1987
Filed: Oct 27, 1986
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.