Term ends Jun 26, 2029 · High confidence
20-year base term ends Mar 13, 2029
Held by Signify Holding B.V.
Filed Mar 13, 2009 as application 12/403,575 · Granted Jun 7, 2011
Base term plus 105 days of patent term adjustment (USPTO delay)
Today
2009
2029
Clock starts
Mar 13, 2009
Mar 13, 2009
Term ends
Jun 26, 2029
Jun 26, 2029
Granted
Jun 7, 2011
Jun 7, 2011
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
105
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.
7
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 105 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 Mar 13, 2009, when this application, 12/403,575, was filed | Mar 13, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +105 days, USPTO patent term adjustment record | Jun 26, 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jun 26, 2029 | High confidence |
This family
| US 7,954,980 | this patent Jun 2029 | Jun 2029 |
| US 8,430,529 | In force Feb 2030 | Feb 2030 |
| US D636,915 | Term ended Apr 2025 | Apr 2025 |
| US D679,846 | In force Apr 2027 | Apr 2027 |
| US 8,303,142 | In force Mar 2029 | Mar 2029 |
| US 8,721,120 | In force Mar 2029 | Mar 2029 |
| US 9,046,231 | In force Mar 2029 | Mar 2029 |
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 |
|---|---|---|---|
| Mar 13, 2009 Reel 22392, frame 224 | Bryant, Christopher Michael; Christ, James Richard | Cooper Technologies Company | Assignment of Assignor's Interest |
| Oct 24, 2012 Reel 29186, frame 755 | Vertical Circuits, Inc. | Vertical Circuits (Assignment for the Benefit of Creditors), LLC | Assignment of Assignor's Interest |
| Feb 1, 2019 Reel 48207, frame 819 | Cooper Technologies Company | Eaton Intelligent Power Limited | Assignment of Assignor's Interest |
| Mar 11, 2019 Reel 48655, frame 114 | Cooper Technologies Company | Eaton Intelligent Power Limited | Corrective Assignment to Correct the Cover Sheet to Remove Application No. 15567271 Previously Recorded on Reel 048207 Frame 0819. Assignor(S) Hereby Confirms the Assignment. |
| May 18, 2020 Reel 52681, frame 475 | Eaton Intelligent Power Limited | Signify Holding B.V. | Assignment of Assignor's Interest |
| Nov 12, 2020 Reel 55965, frame 721 | Eaton Intelligent Power Limited | Signify Holding B.V. | Corrective Assignment to Correct the Application Numbers 12183490, 12183499, 12494944, 12961315, 13528561, 13600790, 13826197, 14605880, 15186648, Recorded in Error Previously Recorded on Reel 052681 Frame 0475. Assignor(S) Hereby Confirms the Assignment. |
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
Jun 2029
Term ends Jun 26, 2029. No further fees fall due before then
Note
The 105 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
13
later US patents cite this one
That is above the median of utility patents granted in 2011 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.