US5076516A (Expired)
1993-04-13
CERTIFICATE OF CORRECTION
1995-04-21
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1999-07-27
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2000-01-02
FOR FAILURE TO PAY MAINTENANCE FEES
2000-03-14
-EXPIRED DUE TO FAILURE TO PAY MAINTENANCE FEE
Effective DATE 19991231
2018-01-30
ON STATUS: PATENT DISCONTINUATION
Free Format Text PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362