Granted Patent
Utility
US 5,273,684 · App. 08/035,522
Composition for wetting hydrophobic capillary materials and the use thereof
Inventors:
Rainer Hans Traber, Christian Guth
Patented Case
View Patent ↗
Granted: Dec 28, 1993
Filed: Mar 23, 1993
Inventors
Rainer Hans Traber
Christian Guth
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.