Granted Patent
Utility
US 4,308,232 · App. 06/055,566
Anticoagulant stopper coating
Inventors:
Ronald Crouther, Fred E. Satchell, Glen A. Stone
Patented Case
View Patent ↗
Granted: Dec 29, 1981
Filed: Jul 9, 1979
Inventors
Ronald Crouther
Fred E. Satchell
Glen A. Stone
Assignee (at issue)
Sherwood Medical Industries 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.