Granted Patent
Utility
US 6,581,640 · App. 09/640,132
Laminated manifold for microvalve
Inventor:
Richard J. Barron
Patented Case
View Patent ↗
Granted: Jun 24, 2003
Filed: Aug 16, 2000
Inventor
Richard J. Barron
Assignee (at issue)
KELSEY-HAYES-COMPANY
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.