Granted Patent
Utility
US 4,921,895 · App. 07/298,123
Preparation for finishing textile fibers and products and textile products having improved handle
Inventors:
Dietmar Schaefer, Friedhelm Nickel
Patented Case
View Patent ↗
Granted: May 1, 1990
Filed: Jan 17, 1989
Inventors
Dietmar Schaefer
Friedhelm Nickel
Assignee (at issue)
Th. Goldschmidt. AG
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.