Granted Patent
Utility
US 6,290,137 · App. 09/411,359
Transparent/translucent financial transaction card including an infrared light filter
Inventor:
John H. Kiekhaefer
Patented Case
View Patent ↗
Granted: Sep 18, 2001
Filed: Oct 1, 1999
Inventor
John H. Kiekhaefer
Assignee (at issue)
Perfect Plastic Printing 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.