Granted Patent
Utility
US 4,573,534 · App. 06/650,071
Cement compositions and method of cementing casing in a well
Inventors:
Wilford S. Baker, James J. Harrison
Patented Case
View Patent ↗
Granted: Mar 4, 1986
Filed: Jun 12, 1984
Inventors
Wilford S. Baker
James J. Harrison
Assignee (at issue)
Gulf Oil Corporation
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.