Granted Patent
Utility
US 5,288,287 · App. 07/950,936
Knee brace
Inventors:
James D. Castillo, Edward Castillo
Patented Case
View Patent ↗
Granted: Feb 22, 1994
Filed: Sep 24, 1992
Inventors
James D. Castillo
Edward Castillo
Assignee (at issue)
INNOVATIVE SPORTS 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.