Granted Patent
Utility
US 5,409,040 · App. 08/103,619
Springless pilot operated sequence valve
Inventor:
Jerry B. Tomlin
Patented Case
View Patent ↗
Granted: Apr 25, 1995
Filed: Aug 9, 1993
Inventor
Jerry B. Tomlin
Assignee (at issue)
Koomey Companies International, 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.