Granted Patent
Utility
US 6,726,173 · App. 10/221,316
Micro-valve
Inventors:
Christoph Hettinger, Ernst Hochholdinger
Patented Case
View Patent ↗
Granted: Apr 27, 2004
Filed: Sep 11, 2002
Inventors
Christoph Hettinger
Ernst Hochholdinger
Assignee (at issue)
Bukert Werke GmbH & Co.
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.