Granted Patent
Utility
US 5,899,272 · App. 08/861,303
Fracture treatment system for wells
Inventor:
Dwight N. Loree
Patented Case
View Patent ↗
Granted: May 4, 1999
Filed: May 21, 1997
Inventor
Dwight N. Loree
Assignee (at issue)
Foremost Industries LP
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.