Granted Patent
Utility
US 5,593,093 · App. 08/372,097
Low cost trigger sprayer having elastomeric pump and inlet valve
Inventors:
Donald D. Foster, Philip L. Nelson
Patented Case
View Patent ↗
Granted: Jan 14, 1997
Filed: Jan 12, 1995
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.