Collateral for a security interest recorded Aug 21, 2024 (Acf Finco I LP).
Term ends May 31, 2029 · High confidence
20-year base term ends Jan 7, 2028
Held by Interdesign, Inc.
Filed Jan 7, 2008 as application 12/006,835 · Granted Dec 23, 2014
Base term plus 510 days of patent term adjustment (USPTO delay)
Today
2008
2029
Clock starts
Jan 7, 2008
Jan 7, 2008
Term ends
May 31, 2029
May 31, 2029
Granted
Dec 23, 2014
Dec 23, 2014
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
510
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 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.
This patent's term runs 510 days past its 20-year base term on prosecution delay. 2 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 Jan 7, 2008, when this application, 12/006,835, was filed | Jan 7, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +510 days, USPTO patent term adjustment record | May 31, 2029 | 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 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | May 31, 2029 | High confidence |
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 |
|---|---|---|---|
| Apr 1, 2008 Reel 20739, frame 191 | Immerman, Robert A.; Snell, Russell Benton; Dretzka, Philip C.; Ghiorghie, Radu Alexandru | Interdesign, Inc. | Assignment of Assignor's Interest |
| Jul 12, 2019 Reel 49744, frame 447 | Interdesign, Inc. | Jpmorgan Chase Bank, N.a. | Security Interest |
| Aug 21, 2024 Reel 68730, frame 699 | Interdesign, Inc.; Interdesign International Holdings, Inc.; Interdesign SPV LLC; Park 31B LLC | Acf Finco I LP | Security Interest |
| Aug 21, 2024 Reel 68735, frame 110 | Jpmorgan Chase Bank, N.a. | Interdesign, Inc. | Release of Security Interest |
| May 14, 2025 Reel 71338, frame 392 | Interdesign, Inc. | Immerman, Robert A. | Security Interest |
| Jul 31, 2025 Reel 72292, frame 482 | Acf Finco I LP | Tiger Finance, LLC | Assignment of Patent Security Agreement |
| Aug 1, 2025 Reel 72325, frame 252 | Immerman, Robert A. | Tiger Finance, LLC | Assignment of Second Lien Patent Security Agreement |
| Aug 4, 2025 Reel 72339, frame 406 | Interdesign, Inc. | Tiger Finance, 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
May 2029
Term ends May 31, 2029.
Note
The 510 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
48
later US patents cite this one
That is top 25% of utility patents granted in 2014 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.