Term ends Feb 23, 2029 · High confidence
20-year base term ends Sep 25, 2027
Held by Samsung Display Co., Ltd.
Filed Mar 30, 2009 as application 12/443,679 · Granted Sep 4, 2012
Base term plus 517 days of patent term adjustment (USPTO delay)
Today
2007
2029
Clock starts
Sep 25, 2007
Sep 25, 2007
Term ends
Feb 23, 2029
Feb 23, 2029
Granted
Sep 4, 2012
Sep 4, 2012
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
517
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.
4
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 517 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 Sep 25, 2007, when application PCT/US2007/079408, the earliest non-provisional in its chain, was filed (this one was filed Mar 30, 2009) | Sep 25, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +517 days, USPTO patent term adjustment record | Feb 23, 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 | Feb 23, 2029 | High confidence |
This family
| US 7,592,996 | In force May 2027 | May 2027 |
| Application PCT/US2007/069933 | PCT application no patent term | no patent term |
| Application PCT/US2007/079408 | PCT application no patent term | no patent term |
| US 8,259,127 | this patent Feb 2029 | Feb 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 30, 2009 Reel 22471, frame 100 | Im, Moonhwan; Credelle, Thomas Lloyd | Samsung Electronics Co., Ltd. | Assignment of Assignor's Interest |
| Sep 23, 2012 Reel 29008, frame 848 | Samsung Electronics Co., Ltd. | Samsung Display Co., 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.
What's changing
Feb 2029
Term ends Feb 23, 2029. No further fees fall due before then
Note
The 517 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
7
later US patents cite this one
That is below the median of utility patents granted in 2012 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.