Granted Patent
Utility
US 6,793,601 · App. 10/269,719
1-2 shift valve assembly
Inventors:
Robert C. Warnke, Benjamin Wallace
Patented Case
View Patent ↗
Granted: Sep 21, 2004
Filed: Oct 11, 2002
Inventors
Robert C. Warnke
Benjamin Wallace
Assignee (at issue)
Sonnax Industries, 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.