Term ends Mar 27, 2028 · High confidence
20-year base term ends Aug 7, 2027
Filed Aug 7, 2007 as application 11/835,059 · Granted Apr 6, 2010
Base term plus 233 days of patent term adjustment (USPTO delay)
Today
2007
2028
Clock starts
Aug 7, 2007
Aug 7, 2007
Term ends
Mar 27, 2028
Mar 27, 2028
Granted
Apr 6, 2010
Apr 6, 2010
base term
patent term adjustment
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
233
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.
11
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 233 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 Aug 7, 2007, when this application, 11/835,059, was filed | Aug 7, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +233 days, USPTO patent term adjustment record | Mar 27, 2028 | 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 | Mar 27, 2028 | High confidence |
This family
| US 7,866,224 | Lapsed on the fee record Jan 2019 | Jan 2019 |
| US 7,926,000 | Lapsed on the fee record Apr 2019 | Apr 2019 |
| US 9,269,770 | In force Nov 2030 | Nov 2030 |
| US 7,759,207 | In force Jun 2027 | Jun 2027 |
| Application 11/736,255 | Abandoned not computed | not computed |
| US 7,692,213 | this patent Mar 2028 | Mar 2028 |
| US 7,968,148 | Lapsed on the fee record Jun 2019 | Jun 2019 |
| Application 11/861,587 | Abandoned not computed | not computed |
8 of 11 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 7, 2007 Reel 19660, frame 387 | Teo, Lee Wee; Chong, Yung Fu; Quek, Elgin Kiok Boone; Chan, Alain | Chartered Semiconductor Manufacturing 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Mar 2028
Term ends Mar 27, 2028. No further fees fall due before then
Note
The 233 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
53
later US patents cite this one
That is top 25% of utility patents granted in 2010 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.