Granted Patent
Utility
US 6,672,749 · App. 09/844,237
Optically marked surface
Inventors:
Mark H. Nicholls, Sidney O. Nicholls, Douglas Pullin
Patented Case
View Patent ↗
Granted: Jan 6, 2004
Filed: Apr 25, 2001
Inventors
Mark H. Nicholls
Sidney O. Nicholls
Douglas Pullin
Assignee (at issue)
Turfstore.Com, 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.