Lapsed Sep 16, 2022 on the fee record · High confidence
20-year base term ends May 19, 2030
Second maintenance fee unpaid; grace period ended.
Held by Zte Corporation
Filed Sep 23, 2011 as application 13/259,606 · Granted Sep 16, 2014
Base term, 20 years from filing
Today
Lapsed Sep 16, 2022
2010
2030
Clock starts
May 19, 2010
May 19, 2010
No longer in force
Sep 16, 2022
Sep 16, 2022
Granted
Sep 16, 2014
Sep 16, 2014
Term would have run to
May 19, 2030
May 19, 2030
base term
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
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
1 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.
38
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 May 19, 2030: its 20-year base term, with no 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 May 19, 2010, when application PCT/CN2010/072926, the earliest non-provisional in its chain, was filed (this one was filed Sep 23, 2011) | May 19, 2030 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | 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 | 1 of 3 maintenance fees paid | lapsed Sep 16, 2022 | High confidence |
| Computed term end | The steps above, in order | Sep 16, 2022 | High confidence |
This family
| US 8,837,614 | this patent Sep 2022 | Sep 2022 |
| US 8,648,691 | Lapsed on the fee record Feb 2026 | Feb 2026 |
| Application 13/259,524 | Abandoned not computed | not computed |
| US 8,615,269 | Lapsed on the fee record Dec 2021 | Dec 2021 |
| US 8,711,722 | In force Aug 2030 | Aug 2030 |
| US 9,344,926 | Lapsed on the fee record May 2024 | May 2024 |
| Application 13/576,370 | Abandoned not computed | not computed |
| US 8,774,645 | Lapsed on the fee record Jul 2026 | Jul 2026 |
8 of 38 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 |
|---|---|---|---|
| Jan 3, 2012 Reel 27471, frame 974 | Li, Ping; Qin, Hongfeng | Zte Corporation | 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.
Citations
7
later US patents cite this one
That is above the median of utility patents granted in 2014 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.