Maintenance fees coming due

Surrozen Operating, Inc.

3 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Mar 5, 2027. Unpaid by Sep 7, 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 11,746,150	ANTI-LRP5/6 Antibodies and Methods of Use Surrozen Operating, Inc. In force Fee due Mar 5, 2027 Lapses if unpaid Sep 7, 2027 Term ends May 15, 2039 · High confidence	Surrozen Operating, Inc.	In force	Mar 5, 2027	Sep 7, 2027	Term ends May 15, 2039	High confidence
US 11,773,171	WNT Surrogate Molecules and Uses Thereof Surrozen Operating, Inc. In force Fee due Apr 3, 2027 Lapses if unpaid Oct 4, 2027 Term ends Jul 4, 2039 · High confidence	Surrozen Operating, Inc.	In force	Apr 3, 2027	Oct 4, 2027	Term ends Jul 4, 2039	High confidence
US 11,958,891	Tissue-Specific WNT Signal Enhancing Molecules and Uses Thereof Surrozen Operating, Inc. In force Fee due Oct 16, 2027 Lapses if unpaid Apr 17, 2028 Term ends Feb 19, 2039 · High confidence	Surrozen Operating, Inc.	In force	Oct 16, 2027	Apr 17, 2028	Term ends Feb 19, 2039	High confidence

3 of 3 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.