Term ends Feb 3, 2033 · High confidence
20-year base term ends May 21, 2032
Filed May 21, 2012 as application 13/476,179 · Granted Apr 7, 2015
Base term plus 258 days of patent term adjustment (USPTO delay)
Today
2012
2033
Clock starts
May 21, 2012
May 21, 2012
Term ends
Feb 3, 2033
Feb 3, 2033
Granted
Apr 7, 2015
Apr 7, 2015
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
258
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.
4
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 258 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 May 21, 2012, when this application, 13/476,179, was filed | May 21, 2032 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +258 days, USPTO patent term adjustment record | Feb 3, 2033 | 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 | Feb 3, 2033 | High confidence |
This family
| US 9,003,218 | this patent Feb 2033 | Feb 2033 |
| US 9,043,626 | In force Feb 2033 | Feb 2033 |
| US 9,710,044 | Lapsed on the fee record Jul 2021 | Jul 2021 |
| US 10,444,812 | Lapsed on the fee record Oct 2023 | Oct 2023 |
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 |
|---|---|---|---|
| Aug 5, 2012 Reel 28725, frame 9 | Bose, Pradip; Buyuktosunoglu, Alper; Da Silva, Dilma Menezes; Franke, Hubertus; Tembey, Priyanka | Internatinoal Business Machines Corporation | Assignment of Assignor's Interest |
| Sep 5, 2024 Reel 68849, frame 12 | Bose, Pradip; Buyuktosunoglu, Alper; Da Silva, Dilma Menezes; Franke, Hubertus; Tembey, Priyanka | International Business Machines Corporation | Corrective Assignment to Correct the the Receiving Party Data Previously Recorded at Reel: 28725 Frame: 9. Assignor(S) Hereby Confirms the Assignment. |
| Feb 23, 2026 Reel 74975, frame 477 | International Business Machines Corporation | Kidon IP Corporation | Assignment of Assignor's Interest |
| Feb 23, 2026 Reel 73866, frame 504 | Kidon IP Corporation | Caprock Integrated Technologies LLC | Assignment of Assignor's Interest |
| Mar 19, 2026 Reel 74125, frame 530 | International Business Machines Corporation | Kidon IP Corporation | Assignment of Assignor's 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 2033
Term ends Feb 3, 2033. No further fees fall due before then
Note
The 258 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
11
later US patents cite this one
That is above the median of utility patents granted in 2015 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.