Granted Patent
Utility
US 5,799,733 · App. 08/941,883
Early evaluation system with pump and method of servicing a well
Inventors:
Paul D. Ringgenberg, Neal G. Skinner, Curtis E. Wendler, Roger L. Schultz, Robert W. Srubar, Margaret C. Waid
Patented Case
View Patent ↗
Granted: Sep 1, 1998
Filed: Sep 30, 1997
Inventors
Paul D. Ringgenberg
Neal G. Skinner
Curtis E. Wendler
Roger L. Schultz
Robert W. Srubar
Margaret C. Waid
Assignee (at issue)
Halliburton Energy Services, 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.