Collateral for a security interest recorded Dec 14, 2021 (HPS Investment Partners, LLC).
Term ends Dec 8, 2038 · High confidence
20-year base term ends Apr 27, 2038
Held by Spanx, LLC
Filed Apr 27, 2018 as application 15/964,942 · Granted Jan 5, 2021
Base term plus 225 days of patent term adjustment (USPTO delay)
Today
2018
2038
Clock starts
Apr 27, 2018
Apr 27, 2018
Term ends
Dec 8, 2038
Dec 8, 2038
Granted
Jan 5, 2021
Jan 5, 2021
base term
patent term adjustment
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
225
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 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 225 days past its 20-year base term on prosecution delay. 1 of 3 maintenance fees is 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 this application, 15/964,942, was filed | Apr 27, 2038 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +225 days, USPTO patent term adjustment record | Dec 8, 2038 | 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 | 1 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 8, 2038 | High confidence |
This family
| US 10,881,152 | this patent Dec 2038 | Dec 2038 |
| US 12,082,627 | In force 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 |
|---|---|---|---|
| Jul 30, 2019 Reel 49897, frame 867 | 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 |
| Dec 14, 2021 Reel 58386, frame 224 | Spanx, LLC | HPS Investment Partners, LLC, as Collateral Agent | 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
Dec 2038
Term ends Dec 8, 2038. Maintenance fees still fall due before then
Note
The 225 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
7
later US patents cite this one
That is top 25% of utility patents granted in 2021 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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.