Lapsed Apr 3, 2016 on the fee record · High confidence
20-year base term ends Jan 11, 2031
First maintenance fee unpaid; grace period ended.
Held by Lotes Co., Ltd.
Filed Jan 11, 2011 as application 12/930,582 · Granted Apr 3, 2012
Base term, 20 years from filing
Today
Lapsed Apr 3, 2016
2011
2031
Clock starts
Jan 11, 2011
Jan 11, 2011
No longer in force
Apr 3, 2016
Apr 3, 2016
Granted
Apr 3, 2012
Apr 3, 2012
Term would have run to
Jan 11, 2031
Jan 11, 2031
base term
after the term ends
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.
0 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.
Its term would have run to Jan 11, 2031: 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 Jan 11, 2011, when this application, 12/930,582, was filed | Jan 11, 2031 | 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 | 0 of 3 maintenance fees paid | lapsed Apr 3, 2016 | High confidence |
| Computed term end | The steps above, in order | Apr 3, 2016 | High confidence |
This family
| US 8,147,256 | this patent Apr 2016 | Apr 2016 |
| US 8,323,038 | In force Jan 2031 | Jan 2031 |
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 11, 2011 Reel 25674, frame 731 | Lin, Zuofeng | Lotes Co., Ltd. | Assignment of Assignor's Interest |
| Feb 9, 2011 Reel 25776, frame 921 | Jin, Zuofeng | Lotes Co., Ltd. | Re-Record to Correct the Assignor's Name Reel/Frame 025674/0731 |
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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
Citations
19
later US patents cite this one
That is above 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.