Granted Patent
Utility
US 5,237,622 · App. 07/802,310
Semiconductor pick-and-place machine automatic calibration apparatus
Inventor:
David A. Howell
Patented Case
View Patent ↗
Granted: Aug 17, 1993
Filed: Dec 4, 1991
Inventor
David A. Howell
Assignee (at issue)
Micron Technology, 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.