Granted Patent
Utility
US 5,704,521 · App. 08/469,525
Trigger actuated sprayer
Inventors:
R. Pat Grogan, Ronald Wadsworth
Patented Case
View Patent ↗
Granted: Jan 6, 1998
Filed: Jun 6, 1995
Inventors
R. Pat Grogan
Ronald Wadsworth
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.