Lapsed Jul 8, 2026 on the fee record · Medium confidence
20-year base term ends Aug 20, 2030
Why Medium: The fee record shows no payment for this window, and USPTO's status still reads "Patented Case".
Third maintenance fee unpaid; grace period ended. The USPTO has not yet posted the lapse.
Held by Zte Corporation
Filed Oct 30, 2012 as application 13/634,469 · Granted Jul 8, 2014
Base term, 20 years from filing, plus 61 days of patent term adjustment (USPTO delay)
Today
Lapsed Jul 8, 2026
2010
2030
Clock starts
Aug 20, 2010
Aug 20, 2010
No longer in force
Jul 8, 2026
Jul 8, 2026
Granted
Jul 8, 2014
Jul 8, 2014
Term would have run to
Oct 20, 2030
Oct 20, 2030
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
61
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.
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 Oct 20, 2030: its 20-year base term plus 61 days of term adjustment for prosecution delay. Confidence: Medium. 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 Aug 20, 2010, when application PCT/CN2010/076218, the earliest non-provisional in its chain, was filed (this one was filed Oct 30, 2012) | Aug 20, 2030 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +61 days, USPTO patent term adjustment record | Oct 20, 2030 | 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 | The fee record shows no payment for this window, and USPTO's status still reads "Patented Case" | lapsed Jul 8, 2026 | Medium confidence |
| Computed term end | The steps above, in order | Jul 8, 2026 | Medium confidence |
This family
| US 8,837,614 | Lapsed on the fee record 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 | this patent 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 |
|---|---|---|---|
| Oct 24, 2012 Reel 29183, frame 179 | Chen, Jianhua; Yi, Hong | 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.
What's changing
Note
The 61 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
0
later US patents cite this one
That is below 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.