Granted Patent
Utility
US 4,482,379 · App. 06/538,647
Cold set cement composition and method
Inventors:
Benton L. Dibrell, Richard G. Gandy
Patented Case
View Patent ↗
Granted: Nov 13, 1984
Filed: Oct 3, 1983
Inventors
Benton L. Dibrell
Richard G. Gandy
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.