Granted Patent
Utility
US 4,526,316 · App. 06/358,879
Lock arrangement for cartons
Inventor:
Robert L. Sutherland
Patented Case
View Patent ↗
Granted: Jul 2, 1985
Filed: Mar 16, 1982
Inventor
Robert L. Sutherland
Assignee (at issue)
Federal Paper Board Co., 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.