Granted Patent
Utility
US 4,372,384 · App. 06/188,813
Well completion method and apparatus
Inventor:
Charles W. Kinney
Patented Case
View Patent ↗
Granted: Feb 8, 1983
Filed: Sep 19, 1980
Inventor
Charles W. Kinney
Assignee (at issue)
Geo Vann, 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.