Granted Patent
Utility
US 5,162,405 · App. 07/675,357
Single-functional and mixtures of multi-functional oligomeric performance additive compositions and their uses
Inventors:
Ronald E. MacLeay, Jose Sanchez, Daryl L. Stein
Patented Case
View Patent ↗
Granted: Nov 10, 1992
Filed: Mar 22, 1991
Inventors
Ronald E. MacLeay
Jose Sanchez
Daryl L. Stein
Assignee (at issue)
Elf Atochem North America, 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.