Granted Patent
Utility
US 5,725,599 · App. 08/407,339
Process for mineral tanning, re-tanning or leather after-treatment
Inventors:
Bernard Danner, Eckardt Hauser, Jurg Heller, Heribert Schmitz, Andre Vallotton
Patented Case
View Patent ↗
Granted: Mar 10, 1998
Filed: Mar 20, 1995
Inventors
Bernard Danner
Eckardt Hauser
Jurg Heller
Heribert Schmitz
Andre Vallotton
Assignee (at issue)
Clariant Finance (BVI) Limited
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.