Granted Patent
Utility
US 4,536,612 · App. 06/500,620
Box for raised floors
Inventor:
Charles N. Domigan
Patented Case
View Patent ↗
Granted: Aug 20, 1985
Filed: Jun 3, 1983
Inventor
Charles N. Domigan
Assignee (at issue)
BUTLER MANUFACTURING COMPANY
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.