Granted Patent
Utility
US 5,758,965 · App. 08/767,127
Mixer system
Inventors:
Jeffrey S. Gambrill, Thomas C. Durney
Patented Case
View Patent ↗
Granted: Jun 2, 1998
Filed: Dec 5, 1996
Inventors
Jeffrey S. Gambrill
Thomas C. Durney
Assignee (at issue)
Federal Signal 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.