Granted Patent
Utility
US 5,639,791 · App. 08/548,737
Di-guerbet esters in personal care applications
Inventor:
Anthony J. O'Lenick, Jr.
Patented Case
View Patent ↗
Granted: Jun 17, 1997
Filed: Oct 26, 1995
Inventor
Anthony J. O'Lenick, Jr.
Assignee (at issue)
SILTECH CORP
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.