Granted Patent
Utility
US 4,830,110 · App. 07/171,709
Method for completing wells in unconsolidated formations
Inventor:
Thomas K. Perkins
Patented Case
View Patent ↗
Granted: May 16, 1989
Filed: Mar 22, 1988
Inventor
Thomas K. Perkins
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.