Granted Patent
Utility
US 4,690,656 · App. 06/749,258
Wheel and winch assemblies utilizing identical hubs and axles in a toy construction set
Inventors:
Walter Friedman, David J. Stricker
Patented Case
View Patent ↗
Granted: Sep 1, 1987
Filed: Jun 27, 1985
Inventors
Walter Friedman
David J. Stricker
Assignee (at issue)
Kenner Parker Toys 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.