Granted Patent
Utility
US 6,186,785 · App. 09/470,555
Torque indicator ratchet wrench for dentistry
Inventors:
Dan P. Rogers, Thomas Tait Robb
Patented Case
View Patent ↗
Granted: Feb 13, 2001
Filed: Dec 22, 1999
Inventors
Dan P. Rogers
Thomas Tait Robb
Assignee (at issue)
Implant Innovations, 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.