PATENT NUMBER FEE AMT SUR- CHARGE  [s:10]YMT DATE U.S. APPLICATION NUMBER  [s:10]ATENT ISSUE DATE APPL. FILING DATE  [s:10]AYMENT YEAR SMALL ENTITY? ATTY DKT NUMBER
6,528,662 $900.00 $0.00 08/29/06 09/877,301 03/04/03 06/08/01 04 NO 13077-53
PATENT NUMBER FEE AMT SUR- CHARGE PYMT DATE U.S. APPLICATION NUMBER PATENT ISSUE DATE APPL. FILING DATE PAYMENT YEAR SMALL ENTITY? ATTY DKT NUMBER
6,750,354 $900.00 $0.00 09/21/07 10/256,836 06/15/04 09/27/02 04 NO MO7334/LEA 35,318
可以看出,07年9月21日已交900美元维持费。该专利处于正常状态。