Granted Patent
Utility
US 5,230,697 · App. 07/694,681
Knee brace
Inventors:
James D. Castillo, Edward Castillo
Patented Case
View Patent ↗
Granted: Jul 27, 1993
Filed: May 2, 1991
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.