| 20140415 | PAT1 | Patented Case | DESCRIPTION : NATIONAL OFFICE DATA: PATENTED CASE
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| 20140506 | + | granted / extensions (spc, cpc, pte) | |
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| 20220613 | PEX1 | Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 | DESCRIPTION : NATIONAL OFFICE DATA: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
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| 20220613 | -STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | DESCRIPTION : PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
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| 20220705 | -FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | EFFECTIVE DATE : 20220506
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| 20290403 | | Calculated Patent Term Expiry (a terminal disclaimer has been filed) | |
| 20321022 | | 20 year period | |
| 20371022 | | 25 year period | |
