Granted Patent
Utility
US 4,649,360 · App. 06/834,715
Solenoid valve with contractible assembly ring
Inventors:
Roger G. Riefler, John E. Ellison
Patented Case
View Patent ↗
Granted: Mar 10, 1987
Filed: Feb 28, 1986
Inventors
Roger G. Riefler
John E. Ellison
Assignee (at issue)
Parker-Hannifin 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.