Granted Patent
Utility
US 6,249,229 · App. 09/374,655
Electronic article security system employing variable time shifts
Inventors:
Eric Eckstein, John Edwin Davies, Jr., Edwin H. Hopton, Jr., Nimesh Shah, Bent Svendsen
Patented Case
View Patent ↗
Granted: Jun 19, 2001
Filed: Aug 16, 1999
Inventors
Eric Eckstein
John Edwin Davies, Jr.
Edwin H. Hopton, Jr.
Nimesh Shah
Bent Svendsen
Assignee (at issue)
Checkpoint Systems, Inc., a Corp. of Pennsylvania
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.