Granted Patent
Utility
US 5,120,364 · App. 07/595,154
Heteroatom containing perfluoroalkyl terminated neopentyl sulfates and salts thereof
Inventors:
Athanasios Karydas, Yung Loh
Patented Case
View Patent ↗
Granted: Jun 9, 1992
Filed: Oct 10, 1990
Inventors
Athanasios Karydas
Yung Loh
Assignee (at issue)
Ciba-Geigy
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.