Granted Patent
Utility
US 6,285,416 · App. 09/306,471
Apparatus and method for a focus position lock device for a projection television lens assembly
Inventors:
John D. Mitchell, Livyn O. Okorocha
Patented Case
View Patent ↗
Granted: Sep 4, 2001
Filed: May 6, 1999
Inventors
John D. Mitchell
Livyn O. Okorocha
Assignee (at issue)
Corning Precision Lens, 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.