Granted Patent
Utility
US 4,859,446 · App. 06/943,443
Process for preparing basic aluminum compounds having increased sweat resistant activity
Inventors:
Eric S. Abrutyn, Robert Sloan
Patented Case
View Patent ↗
Granted: Aug 22, 1989
Filed: Dec 18, 1986
Inventors
Eric S. Abrutyn
Robert Sloan
Assignee (at issue)
Wickhen Products, 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.