Granted Patent
Utility
US 4,235,597 · App. 05/740,708
Granules of textile processing agents for use in organic solvent liquors
Inventor:
Gerhard Reinert
Patented Case
View Patent ↗
Granted: Nov 25, 1980
Filed: Nov 11, 1976
Inventor
Gerhard Reinert
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.