Granted Patent
Utility
US 5,841,528 · App. 08/737,293
Anti counterfeit apparatus
Inventors:
Keith Lewis, Kevin Roy Welford
Patented Case
View Patent ↗
Granted: Nov 24, 1998
Filed: Nov 8, 1996
Inventors
Keith Lewis
Kevin Roy Welford
Assignee (at issue)
The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
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.