Granted Patent
Utility
US 4,239,183 · App. 05/961,372
Handle assembly for bottom outlet valve
Inventors:
Glennon L. Basler, Richard J. Wempe
Patented Case
View Patent ↗
Granted: Dec 16, 1980
Filed: Nov 16, 1978
Inventors
Glennon L. Basler
Richard J. Wempe
Assignee (at issue)
ACF Industries Incorporated
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.