Lapsed Dec 20, 2023 on the fee record · High confidence
20-year base term ended Nov 26, 2023
Third maintenance fee unpaid; grace period ended.
Held by Samsung Electronics Co., Ltd.
Filed Sep 26, 2008 as application 12/232,994 · Granted Dec 20, 2011
Base term, 20 years from filing, plus 103 days of patent term adjustment (USPTO delay)
Today
Lapsed Dec 20, 2023
2003
2026
Clock starts
Nov 26, 2003
Nov 26, 2003
No longer in force
Dec 20, 2023
Dec 20, 2023
Granted
Dec 20, 2011
Dec 20, 2011
Term would have run to
Mar 8, 2024
Mar 8, 2024
base term
patent term adjustment
after the term ends
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
103
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.
6
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 Mar 8, 2024: its 20-year base term plus 103 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 Nov 26, 2003, when application 10/721,191, the earliest non-provisional in its chain, was filed (this one was filed Sep 26, 2008) | Nov 26, 2023 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +103 days, USPTO patent term adjustment record | Mar 8, 2024 | 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 Dec 20, 2023 | High confidence |
| Computed term end | The steps above, in order | Dec 20, 2023 | High confidence |
This family
| US 7,443,437 | In force Nov 2026 | Nov 2026 |
| US 8,081,249 | this patent Dec 2023 | Dec 2023 |
| US 8,471,938 | Term ended no later than Nov 2023 | no later than Nov 2023 |
| US 10,032,825 | Term ended Aug 2025 | Aug 2025 |
| US 10,566,379 | Term ended Nov 2023 | Nov 2023 |
| US 11,282,891 | Term ended Feb 2024 | Feb 2024 |
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 17, 2016 Reel 38144, frame 969 | Micron Technology, Inc. | Samsung Electronics 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.
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Alerts on its grants, lapses and transfers.
What's changing
Note
The 103 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
5
later US patents cite this one
That is below the median of utility patents granted in 2011 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.