Granted Patent
Utility
US 6,657,216 · App. 10/173,726
Dual spot confocal displacement sensor
Inventor:
Jaime Poris
Patented Case
View Patent ↗
Granted: Dec 2, 2003
Filed: Jun 17, 2002
Inventor
Jaime Poris
Assignee (at issue)
Nanometrics Incorporated
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.