Granted Patent
Utility
US 6,207,839 · App. 09/129,329
Process for preparing compositions useful as intermediates for preparing lubricating oil and fuel additives
Inventor:
Mark R. Baker
Patented Case
View Patent ↗
Granted: Mar 27, 2001
Filed: Aug 5, 1998
Inventor
Mark R. Baker
Assignee (at issue)
The Lubrizol 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.