Granted Patent
Utility
US 5,705,083 · App. 08/662,735
Stabilizing leather against thermal and photochemical decomposition
Inventors:
Franz Wyss, Vladimir Arnold, Helena Dbaly, Gisbert Leuschner, Manfred Rembold, Alois Puntener
Patented Case
View Patent ↗
Granted: Jan 6, 1998
Filed: Jun 10, 1996
Inventors
Franz Wyss
Vladimir Arnold
Helena Dbaly
Gisbert Leuschner
Manfred Rembold
Alois Puntener
Assignee (at issue)
Ciba Specialty Chemicals Corporation
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.