Granted Patent
Utility
US 6,077,249 · App. 09/200,117
Tubular shaft instrument
Inventors:
Horst Dittrich, Uwe Bacher
Patented Case
View Patent ↗
Granted: Jun 20, 2000
Filed: Nov 25, 1998
Inventors
Horst Dittrich
Uwe Bacher
Assignee (at issue)
Karl Storz GmbH & Co. KG
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.