Granted Patent
Utility
US 5,419,631 · App. 08/180,366
Three-axis motion tracking interferometer for measurement and correction of positional errors between an article under test and a measurement probe
Inventor:
Dan Slater
Patented Case
View Patent ↗
Granted: May 30, 1995
Filed: Jan 12, 1994
Inventor
Dan Slater
Assignee (at issue)
NEARFIELD SYSTEMS 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.