Granted Patent
Utility
US 6,622,321 · App. 10/118,269
Convertible bed with a sectional articulated back
Inventor:
Roger K. Leib
Patented Case
View Patent ↗
Granted: Sep 23, 2003
Filed: Apr 8, 2002
Inventor
Roger K. Leib
Assignee (at issue)
KI-ADD Specialized Support Technology, 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.