Granted Patent
Utility
US 4,318,007 · App. 06/158,511
Circuit arrangement for controlling the energization of a load from a plurality of current sources
Inventor:
Luigi Rizzi
Patented Case
View Patent ↗
Granted: Mar 2, 1982
Filed: Jun 11, 1980
Inventor
Luigi Rizzi
Assignee (at issue)
Societa Italiana Telecomunicazioni Siemens S.p.A.
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.