Granted Patent
Utility
US 5,348,706 · App. 08/067,422
Calibration system and method for making
Inventors:
Roxanne Abul-Haj, Jacob J. Norman
Patented Case
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Granted: Sep 20, 1994
Filed: May 24, 1993
Inventors
Roxanne Abul-Haj
Jacob J. Norman
Assignee (at issue)
Minnesota Mining and Manufacturing Company
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.