Granted Patent
Utility
US 5,685,374 · App. 08/601,192
Well completions in weakly consolidated formations
Inventors:
Joseph H. Schmidt, Frank E. Bergren, Michael L. Bill, Donald F. Scheve
Patented Case
View Patent ↗
Granted: Nov 11, 1997
Filed: Feb 14, 1996
Inventors
Joseph H. Schmidt
Frank E. Bergren
Michael L. Bill
Donald F. Scheve
Assignee (at issue)
Atlantic Richfield 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.