Granted Patent
Utility
US 6,699,151 · App. 10/106,226
Solenoid valve controlled all-wheel drive hydraulic coupling assembly
Inventors:
John A. Grogg, Wayne Borgen, Martin C. Kaplan
Patented Case
View Patent ↗
Granted: Mar 2, 2004
Filed: Mar 27, 2002
Inventors
John A. Grogg
Wayne Borgen
Martin C. Kaplan
Assignee (at issue)
Torque-Traction Technologies LLC
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.