Collateral for a security interest recorded Dec 14, 2021 (HPS Investment Partners, LLC).
Term ends Jan 31, 2028 · High confidence
20-year base term ended Sep 8, 2024
Held by Spanx, LLC
Filed Sep 8, 2004 as application 10/936,089 · Granted Feb 2, 2010
Base term plus 1240 days of patent term adjustment (USPTO delay)
Today
2004
2028
Clock starts
Sep 8, 2004
Sep 8, 2004
Term ends
Jan 31, 2028
Jan 31, 2028
Granted
Feb 2, 2010
Feb 2, 2010
base term
patent term adjustment
fee events
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
1,240
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 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.
2
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 1240 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Sep 8, 2004, when this application, 10/936,089, was filed | Sep 8, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1240 days, USPTO patent term adjustment record | Jan 31, 2028 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jan 31, 2028 | High confidence |
This family
| US 7,654,115 | this patent Jan 2028 | Jan 2028 |
| US 7,549,302 | Term ended Sep 2024 | Sep 2024 |
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 |
|---|---|---|---|
| Sep 8, 2004 Reel 15777, frame 730 | Duckham, Jadideah; Adams, Brian S.; Willis, Billie J. | 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
Jan 2028
Term ends Jan 31, 2028. No further fees fall due before then
Note
The 1240 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
43
later US patents cite this one
That is top 25% of utility patents granted in 2010 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.