Granted Patent
Utility
US 5,242,439 · App. 07/799,843
Means for inserting instrumentation for a percutaneous diskectomy using a laser
Inventors:
Tor S. Larsen, Alan Lyndon Grantz, David A. Gollnick, Peter S. Hertzmann
Patented Case
View Patent ↗
Granted: Sep 7, 1993
Filed: Nov 26, 1991
Inventors
Tor S. Larsen
Alan Lyndon Grantz
David A. Gollnick
Peter S. Hertzmann
Assignee (at issue)
LASERSCOPE
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.