Granted Patent
Utility
US 4,371,097 · App. 06/147,094
Liquid dispensing pump
Inventor:
Richard K. O'Neill
Patented Case
View Patent ↗
Granted: Feb 1, 1983
Filed: May 7, 1980
Inventor
Richard K. O'Neill
Assignee (at issue)
Diamond International Corporation
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.