Granted Patent
Utility
US 5,401,148 · App. 08/228,024
Manually operated reciprocating liquid pump
Inventors:
Donald D. Foster, Philip L. Nelson
Patented Case
View Patent ↗
Granted: Mar 28, 1995
Filed: Apr 15, 1994
Inventors
Donald D. Foster
Philip L. Nelson
Assignee (at issue)
Contico International, 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.