Granted Patent
Utility
US 4,498,541 · App. 06/590,680
Method of well completion
Inventors:
Emmet F. Brieger, Flint R. George, Edward A. Colle, Jr.
Patented Case
View Patent ↗
Granted: Feb 12, 1985
Filed: Mar 19, 1984
Inventors
Emmet F. Brieger
Flint R. George
Edward A. Colle, Jr.
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.