Companies have tried and failed to get an approval of some sort involving security issues..

Of that prior art noted for the prosecution, 1 has patent status 1986.....the others are recent applications only.....where one abandoned after 5.5 years of trying....the other two are still at it

4. Yoshino...US-2002/0099663 App. number: 09/999,456 Filed: 10-31-2001.... current status: Non-Final Rejection 05-26-2010....now responding..10-25-2010.

10 years....

3. Okamoto...US-20060085859- App. number: 10/533,583 Filed: 05-03-2005....current status: Final rejection 11-10-2009... Docketed New Case - Ready for Examination 05-07-2010...07-08-2010 Pre-Exam Formalities Notice.

5 years...

doni