Granted Patent
Utility
US 4,136,413 · App. 05/848,520
Support appliance
Inventor:
John T. Scales
Patented Case
View Patent ↗
Granted: Jan 30, 1979
Filed: Nov 4, 1977
Inventor
John T. Scales
Assignee (at issue)
The Institute of Orthopaedics
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.