Granted Patent
Utility
US 5,615,739 · App. 08/640,335
Apparatus and method for completing and recompleting wells for production
Inventor:
L. Murray Dallas
Patented Case
View Patent ↗
Granted: Apr 1, 1997
Filed: Apr 30, 1996
Inventor
L. Murray Dallas
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.