Granted Patent
Utility
US 6,648,398 · App. 09/757,374
Bed panel with torsion pin hinge
Inventor:
Michael J. Duffy
Patented Case
View Patent ↗
Granted: Nov 18, 2003
Filed: Jan 9, 2001
Inventor
Michael J. Duffy
Assignee (at issue)
M&C 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.