Granted Patent
Utility
US 4,211,322 · App. 05/962,372
Self-joined interlocking container
Inventors:
Donald Crescenzi, Barry A. Bridges
Patented Case
View Patent ↗
Granted: Jul 8, 1980
Filed: Nov 20, 1978
Inventors
Donald Crescenzi
Barry A. Bridges
Assignee (at issue)
Leigh Products, 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.