Granted Patent
Utility
US 5,484,553 · App. 08/163,612
Aqueous, storable wetting agent which is low-foaming in application
Inventors:
Christian Guth, Albert Stehlin
Patented Case
View Patent ↗
Granted: Jan 16, 1996
Filed: Dec 8, 1993
Inventors
Christian Guth
Albert Stehlin
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.