Granted Patent
Utility
US 4,339,866 · App. 06/245,226
Method of connecting a tube to a flange
Inventors:
Edward R. Horton, John L. Hughes
Patented Case
View Patent ↗
Granted: Jul 20, 1982
Filed: May 27, 1980
Inventors
Edward R. Horton
John L. Hughes
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.