Granted Patent
Utility
US 5,332,527 · App. 08/040,051
Amino-functional compounds as builder/dispersants in detergent compositions
Inventors:
Stephen Wayne Heinzman, Michael J. Eis, Molly P. Armstrong
Patented Case
View Patent ↗
Granted: Jul 26, 1994
Filed: Mar 30, 1993
Inventors
Stephen Wayne Heinzman
Michael J. Eis
Molly P. Armstrong
Assignee (at issue)
The Procter & Gamble Company
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.