Granted Patent
Utility
US 5,313,985 · App. 08/115,726
Modular valve assembly
Inventor:
Richard A. Donner
Patented Case
View Patent ↗
Granted: May 24, 1994
Filed: Sep 2, 1993
Inventor
Richard A. Donner
Assignee (at issue)
Eaton 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.