Lapsed Aug 24, 2022 on the fee record · High confidence
20-year base term ends Aug 10, 2027
Third maintenance fee unpaid; grace period ended.
Held by Denso Corporation and Toyota Jidosha Kabushiki Kaisha
Filed Aug 10, 2007 as application 11/889,335 · Granted Aug 24, 2010
Base term, 20 years from filing, plus 345 days of patent term adjustment (USPTO delay)
Today
Lapsed Aug 24, 2022
2007
2028
Clock starts
Aug 10, 2007
Aug 10, 2007
No longer in force
Aug 24, 2022
Aug 24, 2022
Granted
Aug 24, 2010
Aug 24, 2010
Term would have run to
Jul 20, 2028
Jul 20, 2028
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
345
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.
48
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 Jul 20, 2028: its 20-year base term plus 345 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 Aug 10, 2007, when this application, 11/889,335, was filed | Aug 10, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +345 days, USPTO patent term adjustment record | Jul 20, 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 | 2 of 3 maintenance fees paid | lapsed Aug 24, 2022 | High confidence |
| Computed term end | The steps above, in order | Aug 24, 2022 | High confidence |
This family
| US 7,449,822 | Term ended Jul 2025 | Jul 2025 |
| US 7,535,733 | In force Oct 2027 | Oct 2027 |
| US 7,605,110 | Lapsed on the fee record Oct 2013 | Oct 2013 |
| Application 11/808,977 | Abandoned not computed | not computed |
| US 7,567,051 | Lapsed on the fee record Jul 2013 | Jul 2013 |
| US 7,783,401 | this patent Aug 2022 | Aug 2022 |
| US 7,444,228 | Lapsed on the fee record Oct 2020 | Oct 2020 |
| US 7,893,604 | In force Jul 2028 | Jul 2028 |
8 of 48 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 |
|---|---|---|---|
| Oct 31, 2007 Reel 20040, frame 841 | Satoh, Yohsuke; Miyamoto, Seiji; Shidai, Takahiro; Noda, Waka; Ito, Ryo; Hirano, Hiroyuki | Denso Corporation; Toyota Jidosha Kabushiki Kaisha | Assignment of Assignor's Interest |
| Oct 31, 2007 reel/frame not recorded | Ito, Ryo; Hirano, Hiroyuki; Miyamoto, Seiji; Noda, Waka; Satoh, Yohsuke; Shidai, Takahiro | Denso Corporation | Assignment of Assignor's Interest |
| Oct 31, 2007 reel/frame not recorded | Ito, Ryo; Hirano, Hiroyuki; Miyamoto, Seiji; Noda, Waka; Satoh, Yohsuke; Shidai, Takahiro | Toyota Jidosha Kabushiki Kaisha | 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
Note
The 345 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
3
later US patents cite this one
That is below the median 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.