Granted Patent
Utility
US 4,469,446 · App. 06/391,664
Fluid handling
Inventor:
George O. Goodboy
Patented Case
View Patent ↗
Granted: Sep 4, 1984
Filed: Jun 24, 1982
Inventor
George O. Goodboy
Assignee (at issue)
Joy Manufacturing Company
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.