Granted Patent
Utility
US 4,266,996 · App. 06/115,204
Method and tool for producing centered parts having spherical surfaces
Inventors:
Reinhold Garbe, Leo A. Esterl, Ronald E. Koltun
Patented Case
View Patent ↗
Granted: May 12, 1981
Filed: Jan 25, 1980
Inventors
Reinhold Garbe
Leo A. Esterl
Ronald E. Koltun
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.