Granted Patent
Utility
US 5,643,285 · App. 08/324,656
Vaginal extender for colpotomy surgery
Inventors:
Jimmy M. Rowden, John E. Heaton, Charles H. Koh
Patented Case
View Patent ↗
Granted: Jul 1, 1997
Filed: Oct 18, 1994
Inventors
Jimmy M. Rowden
John E. Heaton
Charles H. Koh
Assignee (at issue)
Blairden Precision Instruments, 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.