Maintenance fees coming due

P2 Science, Inc.

8 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Mar 3, 2027. Unpaid by Sep 3, 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 10,399,954	Preparation of 3-Hydroxy-3,6-Dimethylhexahydrobenzofuran-2-ONE and Derivatives Thereof P2 Science, Inc. In force Fee due Mar 3, 2027 Lapses if unpaid Sep 3, 2027 Term ends Sep 12, 2036 · High confidence	P2 Science, Inc.	In force	Mar 3, 2027	Sep 3, 2027	Term ends Sep 12, 2036	High confidence
US 10,428,001	Film Ozonolysis in a Tubular or Multitubular Reactor P2 Science, Inc. In force Fee due Apr 1, 2027 Lapses if unpaid Oct 1, 2027 Term ends Jun 19, 2035 · High confidence	P2 Science, Inc.	In force	Apr 1, 2027	Oct 1, 2027	Term ends Jun 19, 2035	High confidence
US 11,814,350	New Methods for Disproportionation Quenching of Ozonides P2 Science, Inc. In force Fee due May 14, 2027 Lapses if unpaid Nov 15, 2027 Term ends Oct 18, 2039 · High confidence	P2 Science, Inc.	In force	May 14, 2027	Nov 15, 2027	Term ends Oct 18, 2039	High confidence
US 11,820,865	Vicinal Diol Ether Derivatives of Polyether Polymers P2 Science, Inc. In force Fee due May 21, 2027 Lapses if unpaid Nov 22, 2027 Term ends Jan 14, 2041 · High confidence	P2 Science, Inc.	In force	May 21, 2027	Nov 22, 2027	Term ends Jan 14, 2041	High confidence
US 11,827,746	Polyether Derivatives, Uses, and Methods of Making the Same P2 Science, Inc. In force Fee due May 28, 2027 Lapses if unpaid Nov 29, 2027 Term ends Jul 31, 2038 · High confidence	P2 Science, Inc.	In force	May 28, 2027	Nov 29, 2027	Term ends Jul 31, 2038	High confidence
US 11,872,300	Cosmetic Compositions Comprising Polyether Polymers P2 Science, Inc. In force Fee due Jul 16, 2027 Lapses if unpaid Jan 18, 2028 Term ends Apr 29, 2041 · High confidence	P2 Science, Inc.	In force	Jul 16, 2027	Jan 18, 2028	Term ends Apr 29, 2041	High confidence
US 11,919,849	New Methods for Hydrodealkenylation P2 Science, Inc. In force Fee due Sep 5, 2027 Lapses if unpaid Mar 6, 2028 Term ends Jun 17, 2041 · High confidence	P2 Science, Inc.	In force	Sep 5, 2027	Mar 6, 2028	Term ends Jun 17, 2041	High confidence
US 11,926,577	New Method for Synthesis of 2-Methyl-2-Hydroxyheptane and 2-Methyl 2-Alkoxyheptanes P2 Science, Inc. In force Fee due Sep 12, 2027 Lapses if unpaid Mar 13, 2028 Term ends Oct 8, 2041 · High confidence	P2 Science, Inc.	In force	Sep 12, 2027	Mar 13, 2028	Term ends Oct 8, 2041	High 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.