Granted Patent
Utility
US 5,522,431 · App. 08/402,004
Solenoid valve control system
Inventors:
Dennis L. Bonacorsi, Charles W. Chill, William S. Smith, Jeffrey Welker
Patented Case
View Patent ↗
Granted: Jun 4, 1996
Filed: Mar 10, 1995
Inventors
Dennis L. Bonacorsi
Charles W. Chill
William S. Smith
Jeffrey Welker
Assignee (at issue)
Numatics, Incorporated
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.