Granted Patent
Utility
US 5,004,216 · App. 07/461,229
Spring connection assembly
Inventor:
Robert J. Boudreau
Patented Case
View Patent ↗
Granted: Apr 2, 1991
Filed: Jan 5, 1990
Inventor
Robert J. Boudreau
Assignee (at issue)
Hedstrom 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.