Term ends Nov 11, 2028 · High confidence
20-year base term ends Nov 11, 2028
Filed Dec 16, 2019 as application 16/715,902 · Granted Jul 13, 2021
Base term, 20 years from filing
Today
2008
2028
Clock starts
Nov 11, 2008
Nov 11, 2008
Term ends
Nov 11, 2028
Nov 11, 2028
Granted
Jul 13, 2021
Jul 13, 2021
base term
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
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
1 of 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it paid.
6
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 is its 20-year base term, with no adjustment for prosecution delay. 1 of 1 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 Nov 11, 2008, when application 12/268,881, the earliest non-provisional in its chain, was filed (this one was filed Dec 16, 2019) | Nov 11, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | 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 1 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Nov 11, 2028 | High confidence |
This family
| US 8,719,541 | In force Mar 2031 | Mar 2031 |
| US 9,483,419 | In force Aug 2029 | Aug 2029 |
| US 10,534,727 | In force Apr 2029 | Apr 2029 |
| US 11,061,833 | this patent Nov 2028 | Nov 2028 |
| US 11,119,949 | In force Nov 2028 | Nov 2028 |
| US 11,163,702 | In force Nov 2028 | Nov 2028 |
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 16, 2019 Reel 51296, frame 848 | Murray, Simon; North, Geraint M. | International Business Machines 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.
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Alerts on its grants, lapses and transfers.
What's changing
Nov 2028
Term ends Nov 11, 2028. No further fees fall due before then
Citations
0
later US patents cite this one
That is below the median 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.