Granted Patent
Utility
US 4,424,646 · App. 06/368,101
Vent-type window with emergency egress mounting
Inventor:
Sherman C. Adams
Patented Case
View Patent ↗
Granted: Jan 10, 1984
Filed: Apr 14, 1982
Inventor
Sherman C. Adams
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.