Granted Patent
Utility
US 5,501,813 · App. 08/146,549
Thickener for aqueous compositions
Inventors:
Stephen A. Fischer, Kartar S. Arora, Reuben H. Grinstein, Patrick M. McCurry, Jr., Judith C. Giordan
Patented Case
View Patent ↗
Granted: Mar 26, 1996
Filed: Nov 2, 1993
Inventors
Stephen A. Fischer
Kartar S. Arora
Reuben H. Grinstein
Patrick M. McCurry, Jr.
Judith C. Giordan
Assignee (at issue)
Henkel Limited
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.