Granted Patent
Utility
US 4,426,822 · App. 06/438,533
Vertical ceiling assembly and stringer therefor
Inventor:
J. Lynn Gailey
Patented Case
View Patent ↗
Granted: Jan 24, 1984
Filed: Nov 1, 1982
Inventor
J. Lynn Gailey
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.