Granted Patent
Utility
US 4,691,697 · App. 06/720,169
Knee support
Inventors:
Stephen C. Arensdorf, Lawrence T. Stromgren, Noel Goudreau
Patented Case
View Patent ↗
Granted: Sep 8, 1987
Filed: Apr 5, 1985
Inventors
Stephen C. Arensdorf
Lawrence T. Stromgren
Noel Goudreau
Assignee (at issue)
Strom-Tec, Inc.
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.