Term ends Jan 3, 2027 · High confidence
20-year base term ended Jul 14, 2024
Held by Socionext Inc.
Filed Jul 14, 2004 as application 10/890,260 · Granted Dec 9, 2008
Base term plus 903 days of patent term adjustment (USPTO delay)
Today
2004
2027
Clock starts
Jul 14, 2004
Jul 14, 2004
Term ends
Jan 3, 2027
Jan 3, 2027
Granted
Dec 9, 2008
Dec 9, 2008
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
903
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.
10
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 903 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 Jul 14, 2004, when this application, 10/890,260, was filed | Jul 14, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +903 days, USPTO patent term adjustment record | Jan 3, 2027 | 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 | Jan 3, 2027 | High confidence |
This family
| US 7,148,135 | Lapsed on the fee record Dec 2018 | Dec 2018 |
| US 6,991,951 | Lapsed on the fee record Jan 2014 | Jan 2014 |
| US 7,463,767 | this patent Jan 2027 | Jan 2027 |
| US 7,358,475 | Lapsed on the fee record Apr 2020 | Apr 2020 |
| US 6,999,367 | Term ended Aug 2024 | Aug 2024 |
| US 7,460,108 | In force Jan 2027 | Jan 2027 |
| US 7,227,202 | Term ended Mar 2025 | Mar 2025 |
| US 7,278,124 | Lapsed on the fee record Oct 2019 | Oct 2019 |
8 of 10 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 |
|---|---|---|---|
| Jul 14, 2004 Reel 15568, frame 154 | Kosako, Tatsuo; Tsukada, Ai | Matsushita Electric Industrial Co. Ltd. | Assignment of Assignor's Interest |
| Oct 25, 2007 Reel 20010, frame 766 | Desa IP, LLC | Heathco LLC | Assignment of Assignor's Interest |
| Mar 6, 2009 Reel 22363, frame 306 | Matsushita Electric Industrial Co., Ltd. | Panasonic Corporation | Change of Name |
| Mar 25, 2015 Reel 35294, frame 942 | Panasonic Corporation | Socionext Inc. | 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
Jan 2027
Term ends Jan 3, 2027. No further fees fall due before then
Note
The 903 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
10
later US patents cite this one
That is below the median of utility patents granted in 2008 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.