Granted Patent
Utility
US 4,396,519 · App. 06/362,688
Alkyl-substituted bicycloalkyl ethers as useful lubricants and lubricating oils containing said ethers
Inventor:
Edward C. Y. Nieh
Patented Case
View Patent ↗
Granted: Aug 2, 1983
Filed: Mar 29, 1982
Inventor
Edward C. Y. Nieh
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.