Lapsed Nov 27, 2024 on the fee record · High confidence
20-year base term ends Jun 13, 2028
Third maintenance fee unpaid; grace period ended.
Held by Alstom Technology Ltd.
Filed Jun 13, 2008 as application 12/139,194 · Granted Nov 27, 2012
Base term, 20 years from filing, plus 927 days of patent term adjustment (USPTO delay)
Today
Lapsed Nov 27, 2024
2008
2030
Clock starts
Jun 13, 2008
Jun 13, 2008
No longer in force
Nov 27, 2024
Nov 27, 2024
Granted
Nov 27, 2012
Nov 27, 2012
Term would have run to
Dec 27, 2030
Dec 27, 2030
base term
patent term adjustment
after the term ends
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
927
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.
12
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Dec 27, 2030: its 20-year base term plus 927 days of term adjustment for prosecution delay. 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 Jun 13, 2008, when this application, 12/139,194, was filed | Jun 13, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +927 days, USPTO patent term adjustment record | Dec 27, 2030 | 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 | lapsed Nov 27, 2024 | High confidence |
| Computed term end | The steps above, in order | Nov 27, 2024 | High confidence |
This family
| US 8,321,804 | this patent Nov 2024 | Nov 2024 |
| Application 12/139,159 | Abandoned not computed | not computed |
| US 8,321,800 | In force Sep 2031 | Sep 2031 |
| US 8,112,253 | In force Jun 2028 | Jun 2028 |
| US 9,367,935 | In force Apr 2031 | Apr 2031 |
| US 8,078,332 | In force no later than Dec 2028 | no later than Dec 2028 |
| US 9,367,936 | Lapsed on the fee record Jun 2024 | Jun 2024 |
| US 9,311,728 | In force Jul 2030 | Jul 2030 |
8 of 12 applications in this family shown, earliest filings first. 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 6, 2008 Reel 21345, frame 619 | Castelli, Gennaro; Hackett, Michael; Howard, Michael Quinn; Jones, Lawrence Edmund; Shung, Huichu Su; Brand, Heath Daniel | Areva T&D, Inc. | Assignment of Assignor's Interest |
| Jul 10, 2013 Reel 30783, frame 488 | Areva T&D Inc. | Alstom Grid Inc. | Change of Name |
| Mar 6, 2015 Reel 35109, frame 236 | Alstom Grid Inc. | Alstom Technology Ltd. | 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
Note
The 927 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
27
later US patents cite this one
That is top 25% of utility patents granted in 2012 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.