Granted Patent
Utility
US 4,327,519 · App. 06/214,551
Wandering drone car
Inventors:
Julius Cooper, Burt Ensmann
Patented Case
View Patent ↗
Granted: May 4, 1982
Filed: Dec 9, 1980
Inventors
Julius Cooper
Burt Ensmann
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.