Granted Patent
Utility
US 5,292,309 · App. 08/007,696
Surgical depth measuring instrument and method
Inventors:
Robert A. Van Tassel, Joshua Makower, Robert J. Thatcher
Patented Case
View Patent ↗
Granted: Mar 8, 1994
Filed: Jan 22, 1993
Inventors
Robert A. Van Tassel
Joshua Makower
Robert J. Thatcher
Assignee (at issue)
Schneider (USA) 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.