Also listed on Zhen Ding Technology Co., Ltd., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Feb 26, 2033 · High confidence
20-year base term ends Feb 26, 2033
Held by Leading Interconnect Semiconductor Technology Qinhuangdao Co., Ltd. and Zhen Ding Technology Co., Ltd.
Filed Feb 26, 2013 as application 13/777,043 · Granted Oct 7, 2014
Base term, 20 years from filing
Today
2013
2033
Clock starts
Feb 26, 2013
Feb 26, 2013
Term ends
Feb 26, 2033
Feb 26, 2033
Granted
Oct 7, 2014
Oct 7, 2014
base term
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
None
Term adjustment
No prosecution delay on this record.
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.
2
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 is its 20-year base term, with no adjustment for 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 Feb 26, 2013, when this application, 13/777,043, was filed | Feb 26, 2033 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Feb 26, 2033 | High confidence |
This family
| US 8,853,000 | this patent Feb 2033 | Feb 2033 |
| US 9,000,573 | In force Feb 2033 | Feb 2033 |
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 |
|---|---|---|---|
| Feb 27, 2013 reel/frame not recorded | Chen, Chien-chih; Hsu, Shih-ping; Shi, Hong-xia | Hongqisheng Precision Electronics (Qinhuangdao) Co.,Ltd. | Assignment of Assignor's Interest |
| Feb 27, 2013 reel/frame not recorded | Chen, Chien-chih; Hsu, Shih-ping; Shi, Hong-xia | Zhen Ding Technology Co., Ltd. | Assignment of Assignor's Interest |
| Feb 27, 2013 Reel 29881, frame 428 | Chen, Chien-chih; Shi, Hong-xia; Hsu, Shih-ping | Hongqisheng Precision Electronics (Qinhuangdao) Co.,Ltd.; Zhen Ding Technology Co., Ltd. | Assignment of Assignor's Interest |
| Sep 22, 2016 reel/frame not recorded | Hongqisheng Precision Electronics (Qinhuangdao) Co.,Ltd.; Zhen Ding Technology Co., Ltd. | Qi Ding Technology Qinhuangdao Co., Ltd. | Assignment of Assignor's Interest |
| Sep 22, 2016 reel/frame not recorded | Hongqisheng Precision Electronics (Qinhuangdao) Co.,Ltd.; Zhen Ding Technology Co., Ltd. | Zhen Ding Technology Co., Ltd. | Assignment of Assignor's Interest |
| Sep 22, 2016 Reel 39822, frame 429 | Hongqisheng Precision Electronics (Qinhuangdao) Co.,Ltd.; Zhen Ding Technology Co., Ltd. | Qi Ding Technology Qinhuangdao Co., Ltd.; Zhen Ding Technology Co., Ltd. | Assignment of Assignor's Interest |
| Sep 14, 2023 reel/frame not recorded | Qi Ding Technology Qinhuangdao Co., Ltd.; Zhen Ding Technology Co., Ltd. | Leading Interconnect Semiconductor Technology Qinhuangdao Co., Ltd. | Assignment of Assignor's Interest |
| Sep 14, 2023 reel/frame not recorded | Qi Ding Technology Qinhuangdao Co., Ltd.; Zhen Ding Technology Co., Ltd. | Zhen Ding Technology Co., Ltd. | Assignment of Assignor's Interest |
| Sep 14, 2023 Reel 64899, frame 50 | Qi Ding Technology Qinhuangdao Co., Ltd.; Zhen Ding Technology Co., Ltd. | Leading Interconnect Semiconductor Technology Qinhuangdao Co., Ltd.; Zhen Ding Technology 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
Feb 2033
Term ends Feb 26, 2033. No further fees fall due before then
Citations
5
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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.