Granted Patent
Utility
US 6,478,048 · App. 09/790,261
Two out of three voting solenoid arrangement
Inventor:
Bart A. Hays
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Feb 21, 2001
Inventor
Bart A. Hays
Assignee (at issue)
Triconex
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.