Granted Patent
Utility
US 4,288,334 · App. 06/112,690
Process for secondary recovery of hydrocarbons
Inventors:
David R. McCoy, Carter G. Naylor
Patented Case
View Patent ↗
Granted: Sep 8, 1981
Filed: Jan 17, 1980
Inventors
David R. McCoy
Carter G. Naylor
Assignee (at issue)
Texaco Development 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.