Granted Patent
Utility
US 6,286,649 · App. 09/492,997
Unidirectional rotary drive mechanism for multi-part construction toy
Inventor:
Robert Gleim
Patented Case
View Patent ↗
Granted: Sep 11, 2001
Filed: Jan 27, 2000
Inventor
Robert Gleim
Assignee (at issue)
Connector Set Limited Partnership
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.