Granted Patent
Utility
US 5,349,030 · App. 08/156,158
Easy to disperse polycarboxylic acid thickeners
Inventors:
Carl J. Long, II, Zahid Amjad, William F. Masler, III, William H. Wingo
Patented Case
View Patent ↗
Granted: Sep 20, 1994
Filed: Nov 23, 1993
Inventors
Carl J. Long, II
Zahid Amjad
William F. Masler, III
William H. Wingo
Assignee (at issue)
B. F. Goodrich 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.