Granted Patent
Utility
US 6,401,824 · App. 09/524,117
Well completion convertible float shoe/collar
Inventors:
Jeffrey D. Musselwhite, Jeffry C. Ehlinger, Jerry P. Allamon, Jack E. Miller
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Mar 13, 2000
Inventors
Jeffrey D. Musselwhite
Jeffry C. Ehlinger
Jerry P. Allamon
Jack E. Miller
Assignee (at issue)
Davis-Lynch, 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.