Granted Patent
Utility
US 6,181,183 · App. 09/269,047
Steep edge time-delay relay
Inventors:
Paul-Werner von Basse, Roland Thewes, Michael Bollu, Doris Schmitt-Landsiedel
Patented Case
View Patent ↗
Granted: Jan 30, 2001
Filed: Mar 18, 1999
Inventors
Paul-Werner von Basse
Roland Thewes
Michael Bollu
Doris Schmitt-Landsiedel
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.