Granted Patent
Utility
US 4,476,931 · App. 06/419,294
Water control well treating solution and method
Inventors:
Joel L. Boles, Gene Mancillas
Patented Case
View Patent ↗
Granted: Oct 16, 1984
Filed: Sep 17, 1982
Inventors
Joel L. Boles
Gene Mancillas
Assignee (at issue)
Hughes Tool Company LLC
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.