Granted Patent
Utility
US 4,423,740 · App. 06/249,314
Slit catheter method for measuring interstitial pressure
Inventors:
G. S. Peter Castle, Cecil Rorabeck
Patented Case
View Patent ↗
Granted: Jan 3, 1984
Filed: Mar 31, 1981
Inventors
G. S. Peter Castle
Cecil Rorabeck
Assignee (at issue)
Howmedica 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.