Granted Patent
Utility
US 5,865,504 · App. 08/246,167
Reclining backrest system for a person in a wheelchair
Inventor:
Stephen Warhaftig
Patented Case
View Patent ↗
Granted: Feb 2, 1999
Filed: May 19, 1994
Inventor
Stephen Warhaftig
Assignee (at issue)
Skil-Care 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.