Granted Patent
Utility
US 6,679,488 · App. 09/847,785
Armature spring for a relay
Inventors:
Juergen Breitlow-Hertzfeldt, Martin Hanke, Ralf Hoffmann
Patented Case
View Patent ↗
Granted: Jan 20, 2004
Filed: May 2, 2001
Inventors
Juergen Breitlow-Hertzfeldt
Martin Hanke
Ralf Hoffmann
Assignee (at issue)
Tyco Electronics AMP 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.