Granted Patent
Utility
US 5,135,158 · App. 07/661,422
Three-cell, reclosable product dispenser
Inventors:
Daniel J. Boyle, Herbert L. Lambert
Patented Case
View Patent ↗
Granted: Aug 4, 1992
Filed: Feb 26, 1991
Inventors
Daniel J. Boyle
Herbert L. Lambert
Assignee (at issue)
Waldorf Corporation
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.