Granted Patent
Utility
US 4,606,837 · App. 06/696,664
Water-glycol fluids made from polyoxyalkylene thickeners
Inventors:
Edward E. McEntire, Edward C. Y. Nieh, Robert A. Grigsby, Jr., David R. McCoy
Patented Case
View Patent ↗
Granted: Aug 19, 1986
Filed: Jan 30, 1985
Inventors
Edward E. McEntire
Edward C. Y. Nieh
Robert A. Grigsby, Jr.
David R. McCoy
Assignee (at issue)
Texaco Inc.
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.