Term ended May 26, 2024 · High confidence
20-year base term ended May 26, 2024
USPTO later recorded it as expired for non-payment on Oct 7, 2024.
Held by FTC Solar, Inc.
Filed Nov 18, 2010 as application 12/949,551 · Granted Sep 4, 2012
Base term, 20 years from filing
Today
Term ended May 26, 2024
2004
2026
Clock starts
May 26, 2004
May 26, 2004
Term ended
May 26, 2024
May 26, 2024
Granted
Sep 4, 2012
Sep 4, 2012
base term
after the term ends
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
2 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
28
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
This patent's term is its 20-year base term, with no adjustment for prosecution delay. Confidence: High. from the record
How we calculated this date
One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts May 26, 2004, when application 10/855,254, the earliest non-provisional in its chain, was filed (this one was filed Nov 18, 2010) | May 26, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 2 maintenance fees paid | term ended | High confidence |
| USPTO status record | Recorded as expired for non-payment on Oct 7, 2024, after the term ended | no change | High confidence |
| Computed term end | The steps above, in order | May 26, 2024 | High confidence |
This family
| US 8,344,239 | Term ended Oct 2026 | Oct 2026 |
| US 7,856,769 | Lapsed on the fee record Dec 2018 | Dec 2018 |
| US 7,900,407 | Lapsed on the fee record Mar 2019 | Mar 2019 |
| Application 11/836,140 | Abandoned not computed | not computed |
| Application 12/367,977 | Abandoned not computed | not computed |
| US 8,272,176 | Lapsed on the fee record Sep 2024 | Sep 2024 |
| US 8,256,170 | this patent May 2024 | May 2024 |
| US 8,656,659 | Lapsed on the fee record Feb 2018 | Feb 2018 |
8 of 28 applications in this family shown, earliest filings first. The applications whose file history this site holds. The family may have others.
Assignments
Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Jul 28, 2015 Reel 36192, frame 699 | Plaisted, Joshua Reed; West, Brian | Kineo Design Group, LLC | Assignment of Assignor's Interest |
| Jul 28, 2015 Reel 36192, frame 782 | Kineo Design Group, LLC | PVT Solar, LLC | Assignment of Assignor's Interest |
| Jul 28, 2015 Reel 36192, frame 881 | PVT Solar, LLC. | PVT Solar, Inc. | Change of Name |
| Jul 28, 2015 Reel 36192, frame 906 | PVT Solar, Inc. | SunEdison, Inc. | Assignment of Assignor's Interest |
| Aug 11, 2015 Reel 36329, frame 470 | SunEdison, Inc.; Sun Edison LLC; Solaicx; NVT, LLC | Goldman Sachs Bank USA, as Administrative Agent | Security Interest |
| Jan 12, 2016 Reel 37485, frame 343 | SunEdison, Inc.; Sun Edison LLC; Solaicx | Wells Fargo Bank, National Association, as Administrative Agent | Security Interest |
| Jan 13, 2016 Reel 37508, frame 606 | SunEdison, Inc.; Sun Edison LLC; Solaicx; NVT, LLC | Wilmington Trust, National Association, Solely in Its Capacity as Collateral Trustee | Security Interest |
| Jan 13, 2016 Reel 37508, frame 884 | Goldman Sachs Bank USA, as Administrative Agent | SunEdison, Inc.; Sun Edison LLC; Solaicx; NVT, LLC | Release of Security Interest |
| Jan 13, 2016 reel/frame not recorded | Goldman Sachs Bank USA, as Administrative Agent | SunEdison, Inc. | Release of Security Interest |
| Jan 13, 2016 reel/frame not recorded | Goldman Sachs Bank USA, as Administrative Agent | Sun Edison LLC | Release of Security Interest |
| Jan 13, 2016 reel/frame not recorded | Goldman Sachs Bank USA, as Administrative Agent | Solaicx | Release of Security Interest |
| Jan 13, 2016 reel/frame not recorded | Goldman Sachs Bank USA, as Administrative Agent | NVT, LLC | Release of Security Interest |
| Apr 28, 2016 Reel 38557, frame 472 | SunEdison, Inc. | Deutsche Bank AG New York Branch, as Administrative Agent | Patent Security Agreement |
| Aug 16, 2017 Reel 43569, frame 300 | SunEdison Inc.; SunEdison Utility Holdings, Inc.; PVT Solar, Inc.; SunEdison Products Singapore Pte. Ltd. | FTC Solar, Inc. | Assignment of Assignor's Interest |
| Apr 30, 2021 Reel 56106, frame 643 | FTC Solar, Inc. | Barclays Bank PLC | Intellectual Property Security Agreement |
| Nov 26, 2024 Reel 69450, frame 947 | Barclays Bank PLC, as Administrative Agent | FTC Solar, Inc. | Release of Security Interest |
Sources
Google Patents · The patent document at USPTO · Assignment records at USPTO
USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup
Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.
Citations
85
later US patents cite this one
That is top 10% of utility patents granted in 2012 in our data, the only group it is compared against.
How we rank
Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.