Granted Patent
Utility
US 6,048,031 · App. 09/239,350
Reclining backrest system and kit for a person in a wheelchair
Inventor:
Stephen Warhaftig
Patented Case
View Patent ↗
Granted: Apr 11, 2000
Filed: Jan 28, 1999
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.