C2CNT LLC
1 more in force is now held by another company
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
1
Ending by 2030
Aug 2030
Next term end
When these terms end
Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
Fee deadlines
Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.
- 1 fee due Dec 20, 2026The maintenance fee for Process for the facile electrosynthesis of graphene from CO2 (US 11,680,325) comes due Dec 20, 2026. Unpaid by Jun 21, 2027, it lapses early.
- 1 fee due Jan 14, 2027The maintenance fee for Process for Iron and Steel Production (US 9,080,244) comes due Jan 14, 2027. Unpaid by Jul 14, 2027, it lapses early.
- 2 fees due Feb 22 to 28, 2027 · next Feb 22
- 3 fees due Mar 5 to 26, 2027 · next Mar 5
- 1 fee due May 21, 2027The maintenance fee for Sustainable, Facile Separation of the Molten Carbonate Electrolysis Cathode Product (US 11,821,094) comes due May 21, 2027. Unpaid by Nov 22, 2027, it lapses early.
- 1 fee due Jun 5, 2027The maintenance fee for Sustainable, Facile Separation of the Molten Carbonate Electrolysis Cathode Product (US 11,834,749) comes due Jun 5, 2027. Unpaid by Dec 6, 2027, it lapses early.
- 2 fees due Sep 26 to 29, 2027 · next Sep 26
- 1 fee due Oct 28, 2027The maintenance fee for Molten Air Rechargeable Batteries (US 10,637,115) comes due Oct 28, 2027. Unpaid by Apr 28, 2028, it lapses early.
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
Patents held now
Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 9,683,297 | Apparatus for Molten Salt Electrolysis with Solar Photovoltaic Electricity Supply and Solar Thermal Heating of Molten Salt Electrolyte In force · High confidence | In force | High confidence | |
| US 9,080,244 | Process for Iron and Steel Production In force · High confidence | In force | High confidence | |
| US 9,758,881 | Process for Electrosynthesis of Energetic Molecules In force · High confidence | In force | High confidence | |
| US 9,297,082 | Process for Synthesis of Calcium Oxide In force · High confidence | In force | High confidence | |
| US 11,094,980 | Molten Air Rechargeable Batteries In force · High confidence | In force | High confidence | |
| US 10,637,115 | Molten Air Rechargeable Batteries In force · High confidence | In force | High confidence | |
| US 10,982,339 | Process for the Production of Ammonia from Air and Water In force · High confidence | In force | High confidence | |
| US 10,730,751 | Methods and Systems for Carbon Nanofiber Production In force · High confidence | In force | High confidence | |
| US 11,643,735 | Methods and Systems for Production of Elongated Carbon Nanofibers In force · Medium confidence | In force | Medium confidence | |
| US 11,732,368 | Methods and Systems for Production of Doped Carbon Nanomaterials In force · High confidence | In force | High confidence |
Also on record, not counted in the 38: 1 patent in force now held by others. List them
Sources and methods
Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand.
How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
Published applications
US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.
9 abandoned