Granted Patent
Utility
US 4,351,521 · App. 06/164,822
Riding toy for children with spring support base
Inventor:
William A. Erdos
Patented Case
View Patent ↗
Granted: Sep 28, 1982
Filed: Jun 30, 1980
Inventor
William A. Erdos
Assignee (at issue)
Eagle Rubber Co., Inc.
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.