Maintenance fees coming due
10 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Jan 18, 2027. Unpaid by Jul 19, 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 11,703,626 | Light emitting device with film-based lightguide and added reflecting surfaces In force Fee due Jan 18, 2027 Lapses if unpaid Jul 19, 2027 · High confidence | Azumo, Inc. | In force | Jan 18, 2027 | Jul 19, 2027 | High confidence | |
| US 9,103,956 | Light Emitting Device with Optical Redundancy In force Fee due Feb 11, 2027 Lapses if unpaid Aug 11, 2027 · High confidence | Azumo, Inc. | In force | Feb 11, 2027 | Aug 11, 2027 | High confidence | |
| US 9,110,200 | Illumination Device Comprising a Film-Based Lightguide In force Fee due Feb 18, 2027 Lapses if unpaid Aug 18, 2027 · High confidence | Azumo, Inc. | In force | Feb 18, 2027 | Aug 18, 2027 | High confidence | |
| US 10,393,941 | Display with reflective spatial light modulator and a film-based lightguide frontlight folded behind the modulator to receive light from a light source positioned on an electrical display connector In force Fee due Feb 27, 2027 Lapses if unpaid Aug 27, 2027 · Medium confidence | Azumo, Inc. | In force | Feb 27, 2027 | Aug 27, 2027 | Medium confidence | |
| US 10,429,577 | Light emitting device with a high luminous flux density in a film-based lightguide In force Fee due Apr 1, 2027 Lapses if unpaid Oct 1, 2027 · High confidence | Azumo, Inc. | In force | Apr 1, 2027 | Oct 1, 2027 | High confidence | |
| US 10,466,409 | Light emitting device comprising a film-based lightguide restrained by a component conducting heat from a light source In force Fee due May 5, 2027 Lapses if unpaid Nov 5, 2027 · Medium confidence | Azumo, Inc. | In force | May 5, 2027 | Nov 5, 2027 | Medium confidence | |
| US 11,828,966 | Transmissive Display Including a Backlight with Multiple Stacked Lightguides with a Fold In force Fee due May 28, 2027 Lapses if unpaid Nov 29, 2027 · Medium confidence | Azumo, Inc. | In force | May 28, 2027 | Nov 29, 2027 | Medium confidence | |
| US 10,598,848 | Light emitting device comprising a lightguide with a glass core layer In force Fee due Sep 24, 2027 Lapses if unpaid Mar 24, 2028 · High confidence | Azumo, Inc. | In force | Sep 24, 2027 | Mar 24, 2028 | High confidence | |
| US 11,947,149 | Reflective display with film-based lightguide frontlight including light turning film with coated surfaces In force Fee due Oct 2, 2027 Lapses if unpaid Apr 3, 2028 · High confidence | Azumo, Inc. | In force | Oct 2, 2027 | Apr 3, 2028 | High confidence | |
| US 11,966,116 | Reflective Display Comprising a Lightguide and Light Turning Film Creating Multiple Illumination Peaks In force Fee due Oct 23, 2027 Lapses if unpaid Apr 24, 2028 · Medium confidence | Azumo, Inc. | In force | Oct 23, 2027 | Apr 24, 2028 | Medium confidence |
10 of 10 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.