Granted Patent
Utility
US 5,863,225 · App. 08/723,977
Contact with a bottom and a top spring
Inventors:
Ernst Liebich, Richard Flieger
Patented Case
View Patent ↗
Granted: Jan 26, 1999
Filed: Sep 30, 1996
Inventors
Ernst Liebich
Richard Flieger
Assignee (at issue)
Siemens Aktiengesellschaft
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.