Maintenance fees coming due
4 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Mar 22, 2027. Unpaid by Sep 22, 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 9,139,709 | Article In force Fee due Mar 22, 2027 Lapses if unpaid Sep 22, 2027 · High confidence | Borealis Technology Oy | In force | Mar 22, 2027 | Sep 22, 2027 | High confidence | |
| US 9,200,150 | Silicon Containing Compound as Processing Aid for Polyolefin Compositions In force Fee due Jun 1, 2027 Lapses if unpaid Dec 1, 2027 · High confidence | Borealis Technology Oy | In force | Jun 1, 2027 | Dec 1, 2027 | High confidence | |
| US 9,212,240 | Equipment and Process for Producing Polymer Pellets In force Fee due Jun 15, 2027 Lapses if unpaid Dec 15, 2027 · High confidence | Borealis Technology Oy | In force | Jun 15, 2027 | Dec 15, 2027 | High confidence | |
| US 9,216,548 | Removing Volatile Compounds from Polymer Pellets In force Fee due Jun 22, 2027 Lapses if unpaid Dec 22, 2027 · High confidence | Borealis Technology Oy | In force | Jun 22, 2027 | Dec 22, 2027 | High confidence |
4 of 4 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.