Granted Patent
Utility
US 4,356,667 · App. 06/179,008
Tilt latch for slidable window sash
Inventor:
Frank Malachowski
Patented Case
View Patent ↗
Granted: Nov 2, 1982
Filed: Aug 18, 1980
Inventor
Frank Malachowski
Assignee (at issue)
Alcan Aluminum 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.