Granted Patent
Utility
US 5,488,478 · App. 08/290,811
Method and apparatus for measuring the shape of a surface of an object
Inventors:
John D. Bullock, Norman W. Williams
Patented Case
View Patent ↗
Granted: Jan 30, 1996
Filed: Oct 3, 1994
Inventors
John D. Bullock
Norman W. Williams
Assignee (at issue)
British Steel plc.
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.