Granted Patent
Utility
US 4,834,709 · App. 07/145,706
Preformable catheter
Inventors:
Robert D. Banning, Ronald Crouther, Thomas W. Davison
Patented Case
View Patent ↗
Granted: May 30, 1989
Filed: Jan 19, 1988
Inventors
Robert D. Banning
Ronald Crouther
Thomas W. Davison
Assignee (at issue)
Sherwood Medical Company
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.