Granted Patent
Utility
US 6,314,977 · App. 09/390,151
Adjustable height handgrip for a crutch
Inventors:
Shane Obitts, Paul C. Gilles, Kevin S. Wysocki
Patented Case
View Patent ↗
Granted: Nov 13, 2001
Filed: Sep 3, 1999
Inventors
Shane Obitts
Paul C. Gilles
Kevin S. Wysocki
Assignee (at issue)
INVACARE CORPORATION
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.