Granted Patent
Utility
US 4,454,964 · App. 06/315,899
Adjustable stroke dispensing pump
Inventor:
Robert F. Sacher
Patented Case
View Patent ↗
Granted: Jun 19, 1984
Filed: Oct 28, 1981
Inventor
Robert F. Sacher
Assignee (at issue)
Calmar Holdings LLC
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.