Granted Patent
Utility
US 4,959,629 · App. 07/356,119
High torque rotary solenoid
Inventor:
Robert H. Luetzow
Patented Case
View Patent ↗
Granted: Sep 25, 1990
Filed: May 24, 1989
Inventor
Robert H. Luetzow
Assignee (at issue)
KEARNEY-NATIONAL INC.
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.