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    "title": "USPTO Patent Maintenance-Fee Lapse Monitor — FTO Tracker",
    "description": "Expired patent tracker: US patents lapsed for non-payment of maintenance fees — now public domain. Weekly USPTO bulk events filtered to lapse/reinstatement, with grant date, patent age, entity size and Google Patents links.",
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          },
          "grantYearMin": {
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            "maximum": 2026,
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