Granted Patent
Utility
US 4,747,523 · App. 07/063,920
Manually actuated dispensing pump
Inventor:
Douglas B. Dobbs
Patented Case
View Patent ↗
Granted: May 31, 1988
Filed: Jun 19, 1987
Inventor
Douglas B. Dobbs
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.