Granted Patent
Utility
US 4,527,074 · App. 06/433,292
High voltage pass circuit
Inventors:
Darrel D. Donaldson, Edward H. Honnigford, Alan D. Poeppelman
Patented Case
View Patent ↗
Granted: Jul 2, 1985
Filed: Oct 7, 1982
Inventors
Darrel D. Donaldson
Edward H. Honnigford
Alan D. Poeppelman
Assignee (at issue)
NCR Corporation
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.