Granted Patent
Utility
US 6,475,041 · App. 09/373,526
One-piece two-leg contact spring
Inventors:
Jürgen Lappöhn, Franz Czeschka
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: Aug 12, 1999
Inventors
Jürgen Lappöhn
Franz Czeschka
Assignee (at issue)
ERNI Elektroapparate GmbH
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.