Granted Patent
Utility
US 4,758,729 · App. 07/090,944
Apparatus and method for measuring the included angle of a reflective cone
Inventor:
Douglas B. Monnin
Patented Case
View Patent ↗
Granted: Jul 19, 1988
Filed: Aug 28, 1987
Inventor
Douglas B. Monnin
Assignee (at issue)
Spectra-Physics, 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.