Granted Patent
Utility
US 4,126,058 · App. 05/816,578
Fluid flow divider
Inventors:
Robert L. Shelby, Delbert G. Nelson
Patented Case
View Patent ↗
Granted: Nov 21, 1978
Filed: Jul 18, 1977
Inventors
Robert L. Shelby
Delbert G. Nelson
Assignee (at issue)
Caterpillar Tractor 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.