Granted Patent
Utility
US 4,337,010 · App. 06/103,142
Inflatable grout seal
Inventors:
Bob L. Sullaway, Harold O. Treece
Patented Case
View Patent ↗
Granted: Jun 29, 1982
Filed: Dec 13, 1979
Inventors
Bob L. Sullaway
Harold O. Treece
Assignee (at issue)
Halliburton
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.