Granted Patent
Utility
US 4,542,614 · App. 06/452,886
Structural members with interlocked components
Inventor:
Frank Malachowski
Patented Case
View Patent ↗
Granted: Sep 24, 1985
Filed: Dec 27, 1982
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.