Granted Patent
Utility
US 5,183,185 · App. 07/656,195
Mechanically pressurized dispenser system
Inventors:
Jerry D. Hutcheson, William S. Blake
Patented Case
View Patent ↗
Granted: Feb 2, 1993
Filed: Feb 14, 1991
Inventors
Jerry D. Hutcheson
William S. Blake
Assignee (at issue)
Ecopac, L. P.
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.