Granted Patent
Utility
US 5,211,446 · App. 07/607,527
Wheelchair back system
Inventors:
Eric C. Jay, Michael H. Nordquist
Patented Case
View Patent ↗
Granted: May 18, 1993
Filed: Nov 1, 1990
Inventors
Eric C. Jay
Michael H. Nordquist
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.