Granted Patent
Utility
US 5,072,220 · App. 07/655,735
Analog/digital converter operating by the expanded parallel method
Inventors:
Reinhard Petschacher, Berthold Astegher
Patented Case
View Patent ↗
Granted: Dec 10, 1991
Filed: Feb 14, 1991
Inventors
Reinhard Petschacher
Berthold Astegher
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.