Granted Patent
Utility
US 5,556,168 · App. 08/261,529
Wheelchair back system
Inventors:
John C. Dinsmoor, III, Barry Van Everen, Michael W. Johnson, Grant C. Denton
Patented Case
View Patent ↗
Granted: Sep 17, 1996
Filed: Jun 17, 1994
Inventors
John C. Dinsmoor, III
Barry Van Everen
Michael W. Johnson
Grant C. Denton
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.