Term ends Jul 9, 2033 · High confidence
20-year base term ends Oct 16, 2032
Held by Largan Precision Co., Ltd.
Filed May 16, 2014 as application 14/279,343 · Granted Nov 8, 2016
Base term plus 266 days of patent term adjustment (USPTO delay)
Today
2012
2033
Clock starts
Oct 16, 2012
Oct 16, 2012
Term ends
Jul 9, 2033
Jul 9, 2033
Granted
Nov 8, 2016
Nov 8, 2016
base term
patent term adjustment
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
266
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.
10
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 runs 266 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are paid so far. 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 Oct 16, 2012, when application 13/652,485, the earliest non-provisional in its chain, was filed (this one was filed May 16, 2014) | Oct 16, 2032 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +266 days, USPTO patent term adjustment record | Jul 9, 2033 | 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 | In force | High confidence |
| Computed term end | The steps above, in order | Jul 9, 2033 | High confidence |
This family
| US 9,488,802 | In force Apr 2033 | Apr 2033 |
| US 9,354,426 | In force Aug 2033 | Aug 2033 |
| US 9,488,803 | this patent Jul 2033 | Jul 2033 |
| US 9,726,860 | In force Oct 2032 | Oct 2032 |
| US 9,897,783 | In force Oct 2032 | Oct 2032 |
| US 9,915,808 | In force Oct 2032 | Oct 2032 |
| US 10,353,179 | In force Oct 2032 | Oct 2032 |
| US 10,739,562 | In force Jun 2033 | Jun 2033 |
8 of 10 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 |
|---|---|---|---|
| May 20, 2014 Reel 32935, frame 236 | Chen, Chun-shan; Tsai, Tsung-han; Chou, Ming-ta | Largan Precision 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Jul 2033
Term ends Jul 9, 2033. Maintenance fees still fall due before then
Note
The 266 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
2
later US patents cite this one
That is below the median of utility patents granted in 2016 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.