Granted Patent
Utility
US 4,334,221 · App. 06/086,873
Multi-vehicle multi-controller radio remote control system
Inventors:
William Rosenhagen, George J. Whalen
Patented Case
View Patent ↗
Granted: Jun 8, 1982
Filed: Oct 22, 1979
Inventors
William Rosenhagen
George J. Whalen
Assignee (at issue)
Ideal Toy Corporation
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.