Granted Patent
Utility
US 4,615,467 · App. 06/758,428
Liquid foam dispenser
Inventors:
Richard P. Grogan, Douglas F. Corsette
Patented Case
View Patent ↗
Granted: Oct 7, 1986
Filed: Jul 24, 1985
Inventors
Richard P. Grogan
Douglas F. Corsette
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.