Granted Patent
Utility
US 4,629,228 · App. 06/798,330
Push-pull door latch
Inventors:
Neil L. Marko, Bruce W. Mitton
Patented Case
View Patent ↗
Granted: Dec 16, 1986
Filed: Nov 15, 1985
Inventors
Neil L. Marko
Bruce W. Mitton
Assignee (at issue)
Universal Industrial Products Co. (Div. of Core Industries, Inc.)
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.