Granted Patent
Utility
US 4,398,930 · App. 06/297,529
Fluid deaeration apparatus
Inventors:
Larry Larson, Brian Murphy
Patented Case
View Patent ↗
Granted: Aug 16, 1983
Filed: Aug 7, 1981
Inventors
Larry Larson
Brian Murphy
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.