Granted Patent
Utility
US 4,528,829 · App. 06/072,087
Compound lock for baggage or parcel lockers and the like
Inventors:
James D. Bert, Nathan Cynamon
Patented Case
View Patent ↗
Granted: Jul 16, 1985
Filed: Sep 4, 1979
Inventors
James D. Bert
Nathan Cynamon
Assignee (at issue)
American Device 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.