Also listed on Sharp NEC Display Solutions, Ltd., an earlier holder on the record. The recorded assignments below show how it moved.
Term ended Nov 4, 2026 · High confidence
20-year base term ended Jul 8, 2025
Held by Sharp Kabushiki Kaisha
Filed Jul 8, 2005 as application 11/176,279 · Granted Nov 17, 2009
Base term plus 484 days of patent term adjustment (USPTO delay)
Today
Term ended Nov 4, 2026
2005
2026
Clock starts
Jul 8, 2005
Jul 8, 2005
Term ended
Nov 4, 2026
Nov 4, 2026
Granted
Nov 17, 2009
Nov 17, 2009
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
484
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.
This patent's term runs 484 days past its 20-year base term on prosecution delay. All three maintenance fees were paid, so no fee lapse ended it. 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 8, 2005, when this application, 11/176,279, was filed | Jul 8, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +484 days, USPTO patent term adjustment record | Nov 4, 2026 | 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 | term ended | High confidence |
| Computed term end | The steps above, in order | Nov 4, 2026 | High confidence |
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 12, 2005 Reel 16888, frame 42 | Matsushita, Tomoyoshi | NEC Viewtechnology, Ltd. | Assignment of Assignor's Interest |
| Aug 16, 2005 Reel 16888, frame 34 | Matsushita, Tomoyoshi | NEC Viewtechnology, Ltd. | Assignment of Assignor's Interest |
| Apr 28, 2015 Reel 35509, frame 782 | NEC Viewtechnology, Ltd. | NEC Display Solutions, Ltd. | Change of Name |
| Feb 8, 2021 Reel 55256, frame 755 | NEC Display Solutions, Ltd. | Sharp NEC Display Solutions, Ltd. | Change of Name |
| Jun 26, 2026 Reel 75830, frame 159 | Sharp NEC Display Solutions, Ltd. | Sharp Kabushiki Kaisha | Merger |
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.
What's changing
Note
The 484 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
8
later US patents cite this one
That is below the median of utility patents granted in 2009 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.