Maintenance fees coming due

Flexterra, Inc.

2 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Jan 16, 2027. Unpaid by Jul 16, 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 10,355,213	Dithiophenethiadiazole Semiconductors and Related Devices Flexterra, Inc. and Raynergy Tek Inc. In force Fee due Jan 16, 2027 Lapses if unpaid Jul 16, 2027 Term ends Jan 9, 2037 · High confidence	Flexterra, Inc. and Raynergy Tek Inc.	In force	Jan 16, 2027	Jul 16, 2027	Term ends Jan 9, 2037	High confidence
US 9,178,160	Fused Thiophene-Based Conjugated Polymers and Their Use in Optoelectronic Devices Flexterra, Inc. In force Fee due May 3, 2027 Lapses if unpaid Nov 3, 2027 Term ends Oct 21, 2034 · High confidence	Flexterra, Inc.	In force	May 3, 2027	Nov 3, 2027	Term ends Oct 21, 2034	High confidence

2 of 2 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.