Granted Patent
Utility
US 5,144,049 · App. 07/781,447
Volatile liquid precursors for the chemical vapor deposition of copper
Inventors:
John Anthony Thomas Norman, Beth A. Muratore
Patented Case
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Granted: Sep 1, 1992
Filed: Oct 23, 1991
Inventors
John Anthony Thomas Norman
Beth A. Muratore
Assignee (at issue)
Air Products and Chemicals, 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.