Maintenance fees coming due

Tesaro, Inc.

5 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Nov 30, 2026. Unpaid by Jun 1, 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 11,661,453	Combination Therapies for Treating Cancer with Niraparib and PD-1 Inhibitors Tesaro, Inc. In force Fee due Nov 30, 2026 Lapses if unpaid Jun 1, 2027 Term ends May 20, 2039 · High confidence	Tesaro, Inc.	In force	Nov 30, 2026	Jun 1, 2027	Term ends May 20, 2039	High confidence
US 11,730,725	Niraparib Formulations Tesaro, Inc. In force Fee due Feb 22, 2027 Lapses if unpaid Aug 23, 2027 Term ends Jan 25, 2039 · High confidence	Tesaro, Inc.	In force	Feb 22, 2027	Aug 23, 2027	Term ends Jan 25, 2039	High confidence
US 11,753,472	Antibodies Directed Against T Cell Immunoglobulin and Mucin Protein 3 (TIM-3) Tesaro, Inc. In force Fee due Mar 12, 2027 Lapses if unpaid Sep 13, 2027 Term ends Nov 1, 2037 · High confidence	Tesaro, Inc.	In force	Mar 12, 2027	Sep 13, 2027	Term ends Nov 1, 2037	High confidence
US 11,801,240	Combination Therapies and Uses Thereof Tesaro, Inc. In force Fee due Apr 30, 2027 Lapses if unpaid Nov 1, 2027 Term ends Oct 18, 2039 · High confidence	Tesaro, Inc.	In force	Apr 30, 2027	Nov 1, 2027	Term ends Oct 18, 2039	High confidence
US 11,926,665	Methods of Treating Cancer with ANTI-TIM-3 Antibodies Tesaro, Inc. In force Fee due Sep 12, 2027 Lapses if unpaid Mar 13, 2028 Ends no later than Feb 10, 2039 · Medium confidence	Tesaro, Inc.	In force	Sep 12, 2027	Mar 13, 2028	Ends no later than Feb 10, 2039	Medium confidence

5 of 5 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.