Granted Patent
Utility
US 6,073,907 · App. 08/966,379
Removable and interchangeable valve actuator system
Inventors:
Michael Schreiner, John Schlais
Patented Case
View Patent ↗
Granted: Jun 13, 2000
Filed: Nov 7, 1997
Inventors
Michael Schreiner
John Schlais
Assignee (at issue)
Erie Manufacturing 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.