Granted Patent
Utility
US 4,686,254 · App. 06/762,175
Suspension composition for aqueous surfactant systems
Inventors:
Robert Y. Lochhead, Debra S. S. Warfield
Patented Case
View Patent ↗
Granted: Aug 11, 1987
Filed: Aug 5, 1985
Inventors
Robert Y. Lochhead
Debra S. S. Warfield
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.