Granted Patent
Utility
US 5,267,970 · App. 07/786,719
Device for anchoring trocar sleeve
Inventors:
Albert K. Chin, Charles Gresl, Frank T. Watkins, III
Patented Case
View Patent ↗
Granted: Dec 7, 1993
Filed: Nov 1, 1991
Inventors
Albert K. Chin
Charles Gresl
Frank T. Watkins, III
Assignee (at issue)
Origin Medsystems, 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.