Collateral for a security interest recorded Jul 15, 2026 (HPS Investment Partners, LLC).
Term ends Feb 9, 2040 · High confidence
20-year base term ends Apr 27, 2038
Held by Spanx, LLC
Filed Dec 17, 2020 as application 17/125,241 · Granted Sep 10, 2024
Base term plus 653 days of patent term adjustment (USPTO delay)
Today
2018
2040
Clock starts
Apr 27, 2018
Apr 27, 2018
Term ends
Feb 9, 2040
Feb 9, 2040
Granted
Sep 10, 2024
Sep 10, 2024
base term
patent term adjustment
Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
653
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
0 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.
5
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 runs 653 days past its 20-year base term on prosecution delay. 0 of 3 maintenance fees are paid so far. 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 Apr 27, 2018, when application 15/964,942, the earliest non-provisional in its chain, was filed (this one was filed Dec 17, 2020) | Apr 27, 2038 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +653 days, USPTO patent term adjustment record | Feb 9, 2040 | 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 | 0 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Feb 9, 2040 | High confidence |
This family
| US 10,881,152 | In force Dec 2038 | Dec 2038 |
| US 12,082,627 | this patent Feb 2040 | Feb 2040 |
| US 12,419,363 | In force Apr 2038 | Apr 2038 |
| US 12,599,182 | In force Apr 2038 | Apr 2038 |
| Application 19/297,597 | Pending not computed | not computed |
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 |
|---|---|---|---|
| Dec 18, 2020 Reel 54701, frame 994 | Melendez, Angelica; Johnson, Jennifer; Novosiolova, Elena | Spanx, Inc. | Assignment of Assignor's Interest |
| Dec 2, 2021 Reel 58299, frame 377 | Spanx, Inc. | Spanx, LLC | Certificate of Conversion |
| Jul 15, 2026 Reel 75975, frame 972 | Spanx, LLC | HPS Investment Partners, LLC, as Collateral Agent | Supplemental Patent Security Agreement |
| Aug 6, 2026 Reel 75548, frame 592 | Spanx LLC | HPS Investment Partners, LLC | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Feb 2040
Term ends Feb 9, 2040. Maintenance fees still fall due before then
Note
The 653 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
2
later US patents cite this one
Fewer than half of the utility patents granted in 2024 in our data have been cited yet, so we show the count and do not rank on it.
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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.