Granted Patent
Utility
US 5,475,047 · App. 08/245,198
Carboxylic acid thickener having improved performance under alkaline conditions
Inventors:
Tonson Abraham, William F. Masler, III
Patented Case
View Patent ↗
Granted: Dec 12, 1995
Filed: May 17, 1994
Inventors
Tonson Abraham
William F. Masler, III
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.