Maintenance fees coming due

Cardea Bio, Inc.

8 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Feb 1, 2027. Unpaid by Aug 2, 2027, that one lapses early.

A maintenance fee does not end a patent on its due date. It falls due at 3.5, 7.5 and 11.5 years from grant, and the patent lapses only if the fee is still unpaid at the end of the six month grace period that follows.

Patent	Title	Holder	Status	Fee due	Lapses if unpaid	Expires	Confidence
US 11,713,455	Enhanced Selection of Efficient Targeted Genome Manipulating Agents Cardea Bio, Inc. In force Fee due Feb 1, 2027 Lapses if unpaid Aug 2, 2027 Term ends Nov 21, 2041 · High confidence	Cardea Bio, Inc.	In force	Feb 1, 2027	Aug 2, 2027	Term ends Nov 21, 2041	High confidence
US 11,732,296	Two-dimensional channel fet devices, systems, and methods of using the same for sequencing nucleic acids Cardea Bio, Inc. In force Fee due Feb 22, 2027 Lapses if unpaid Aug 23, 2027 Term ends Dec 9, 2035 · High confidence	Cardea Bio, Inc.	In force	Feb 22, 2027	Aug 23, 2027	Term ends Dec 9, 2035	High confidence
US 10,395,928	Depositing a Passivation Layer on a Graphene Sheet Cardea Bio, Inc. In force Fee due Feb 27, 2027 Lapses if unpaid Aug 27, 2027 Term ends Jun 14, 2037 · High confidence	Cardea Bio, Inc.	In force	Feb 27, 2027	Aug 27, 2027	Term ends Jun 14, 2037	High confidence
US 10,429,342	Chemically-Sensitive Field Effect Transistor Cardea Bio, Inc. In force Fee due Apr 1, 2027 Lapses if unpaid Oct 1, 2027 Term ends Dec 9, 2035 · High confidence	Cardea Bio, Inc.	In force	Apr 1, 2027	Oct 1, 2027	Term ends Dec 9, 2035	High confidence
US 10,429,381	Chemically-Sensitive Field Effect Transistors, Systems, and Methods for Manufacturing and Using the Same Cardea Bio, Inc. In force Fee due Apr 1, 2027 Lapses if unpaid Oct 1, 2027 Term ends Dec 9, 2035 · High confidence	Cardea Bio, Inc.	In force	Apr 1, 2027	Oct 1, 2027	Term ends Dec 9, 2035	High confidence
US 11,782,057	Ic with Graphene Fet Sensor Array Patterned in Layers Above Circuitry Formed in a Silicon Based CMOS Wafer Cardea Bio, Inc. In force Fee due Apr 10, 2027 Lapses if unpaid Oct 12, 2027 Term ends Jun 26, 2035 · Medium confidence	Cardea Bio, Inc.	In force	Apr 10, 2027	Oct 12, 2027	Term ends Jun 26, 2035	Medium confidence
US 10,494,670	Graphene Fet Devices, Systems, and Methods of Using the Same for Sequencing Nucleic Acids Cardea Bio, Inc. In force Fee due Jun 3, 2027 Lapses if unpaid Dec 3, 2027 Term ends Dec 9, 2035 · High confidence	Cardea Bio, Inc.	In force	Jun 3, 2027	Dec 3, 2027	Term ends Dec 9, 2035	High confidence
US 10,607,989	Graphene Fet Devices, Systems, and Methods of Using the Same for Sequencing Nucleic Acids Cardea Bio, Inc. In force Fee due Sep 30, 2027 Lapses if unpaid Mar 31, 2028 Term ends Dec 9, 2035 · Medium confidence	Cardea Bio, Inc.	In force	Sep 30, 2027	Mar 31, 2028	Term ends Dec 9, 2035	Medium confidence

8 of 8 patents shown. Soonest fee due date first, then patent number.

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.