Granted Patent
Utility
US 5,397,335 · App. 08/093,101
Trocar assembly with improved adapter seals
Inventors:
Charles Gresl, Edwin J. Hlavka
Patented Case
View Patent ↗
Granted: Mar 14, 1995
Filed: Jul 13, 1993
Inventors
Charles Gresl
Edwin J. Hlavka
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.