Granted Patent
Utility
US 5,808,213 · App. 08/751,936
Silver-iron material for electrical switching contacts (II)
Inventors:
Wolfgang Weise, Willi Malikowski, Roger Wolmer, Peter Braumann, Andreas Koffler
Patented Case
View Patent ↗
Granted: Sep 15, 1998
Filed: Nov 19, 1996
Inventors
Wolfgang Weise
Willi Malikowski
Roger Wolmer
Peter Braumann
Andreas Koffler
Assignee (at issue)
Degussa 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.