Maintenance fees coming due
8 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Apr 17, 2027. Unpaid by Oct 18, 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 11,787,916 | Highly Branched Non-Crosslinked Aerogel, Methods of Making, and Uses Thereof In force Fee due Apr 17, 2027 Lapses if unpaid Oct 18, 2027 · High confidence | Blueshift Materials, Inc. | In force | Apr 17, 2027 | Oct 18, 2027 | High confidence | |
| US 11,814,497 | Organic Polymer Aerogels Comprising Microstructures In force Fee due May 14, 2027 Lapses if unpaid Nov 15, 2027 · High confidence | Blueshift Materials, Inc. | In force | May 14, 2027 | Nov 15, 2027 | High confidence | |
| US 10,500,557 | Internally Reinforced Aerogel and Uses Thereof In force Fee due Jun 10, 2027 Lapses if unpaid Dec 10, 2027 · High confidence | Blueshift Materials, Inc. | In force | Jun 10, 2027 | Dec 10, 2027 | High confidence | |
| US 11,873,379 | Thermally Treated Polyamic Amide Aerogel In force Fee due Jul 16, 2027 Lapses if unpaid Jan 18, 2028 · High confidence | Blueshift Materials, Inc. | In force | Jul 16, 2027 | Jan 18, 2028 | High confidence | |
| US 11,931,999 | Internally Reinforced Aerogel and Uses Thereof In force Fee due Sep 19, 2027 Lapses if unpaid Mar 20, 2028 · High confidence | Blueshift Materials, Inc. | In force | Sep 19, 2027 | Mar 20, 2028 | High confidence | |
| US 11,945,929 | Macroporous-Structured Polymer Aerogels In force Fee due Oct 2, 2027 Lapses if unpaid Apr 3, 2028 · High confidence | Blueshift Materials, Inc. | In force | Oct 2, 2027 | Apr 3, 2028 | High confidence | |
| US 10,626,239 | Polymer Aerogel with Improved Mechanical and Thermal Properties In force Fee due Oct 21, 2027 Lapses if unpaid Apr 21, 2028 · High confidence | Blueshift Materials, Inc. | In force | Oct 21, 2027 | Apr 21, 2028 | High confidence | |
| US 10,626,240 | Polymer Aerogel with Improved Mechanical and Thermal Properties In force Fee due Oct 21, 2027 Lapses if unpaid Apr 21, 2028 · High confidence | Blueshift Materials, Inc. | In force | Oct 21, 2027 | Apr 21, 2028 | 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.