US5584047A (Expired)
1997-08-19
CERTIFICATE OF CORRECTION
1999-12-13
PAYMENT
Year of Fee Payment 4
2004-06-30
MAINTENANCE FEE REMINDER MAILED
2004-08-11
PAYMENT
Year of Fee Payment 8
2004-08-11
FOR LATE PAYMENT
Year of Fee Payment 7
2008-06-16
MAINTENANCE FEE REMINDER MAILED
2008-12-10
FOR FAILURE TO PAY MAINTENANCE FEES
2009-01-05
ON STATUS: PATENT DISCONTINUATION
Free Format Text PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
2009-01-27
-EXPIRED DUE TO FAILURE TO PAY MAINTENANCE FEE
Effective DATE 20081210
