Granted Patent
Utility
US 5,647,637 · App. 08/633,158
Seating and back systems for a wheelchair
Inventors:
Eric C. Jay, John C. Dinsmoor, III
Patented Case
View Patent ↗
Granted: Jul 15, 1997
Filed: Apr 16, 1996
Inventors
Eric C. Jay
John C. Dinsmoor, III
Assignee (at issue)
Jay Medical Ltd.
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.