Granted Patent
Utility
US 5,872,434 · App. 08/920,051
Systems and methods for actuator power failure response
Inventor:
Michael Hill
Patented Case
View Patent ↗
Granted: Feb 16, 1999
Filed: Aug 28, 1997
Inventor
Michael Hill
Assignee (at issue)
Barber-Coleman Company
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.