Term ends May 12, 2033 · High confidence
20-year base term ends Aug 17, 2032
Held by Toto Ltd.
Filed Aug 17, 2012 as application 13/588,584 · Granted Apr 9, 2019
Base term plus 268 days of patent term adjustment (USPTO delay)
Today
2012
2033
Clock starts
Aug 17, 2012
Aug 17, 2012
Term ends
May 12, 2033
May 12, 2033
Granted
Apr 9, 2019
Apr 9, 2019
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
268
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.
23
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 268 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 Aug 17, 2012, when this application, 13/588,584, was filed | Aug 17, 2032 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +268 days, USPTO patent term adjustment record | May 12, 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 | May 12, 2033 | High confidence |
This family
| US 8,510,876 | Lapsed on the fee record Aug 2017 | Aug 2017 |
| US 8,235,353 | Lapsed on the fee record Aug 2024 | Aug 2024 |
| US 8,534,318 | Lapsed on the fee record Sep 2021 | Sep 2021 |
| Application 12/886,116 | Abandoned not computed | not computed |
| US 8,745,772 | In force Aug 2032 | Aug 2032 |
| US 9,062,444 | In force Jun 2033 | Jun 2033 |
| US 8,695,126 | In force Jul 2032 | Jul 2032 |
| US 10,648,164 | In force Sep 2033 | Sep 2033 |
8 of 23 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 18, 2013 Reel 29659, frame 253 | Yamasaki, Yu; Iinoue, Masaaki; Nakamura, Masahiro; Watanabe, Kenji | Toto Ltd. | Assignment of Assignor's Interest |
| Jan 30, 2013 Reel 29723, frame 262 | Yamasaki, Yu; Inoue, Masaaki; Nakamura, Masahiro; Watanabe, Kenji | Toto Ltd. | Corrective Assignment to Correct the Second Inventors Last Name Previously Recorded on Reel 029659 Frame 0253. Assignor(S) Hereby Confirms the Assignment. |
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
May 2033
Term ends May 12, 2033. Maintenance fees still fall due before then
Note
The 268 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
11
later US patents cite this one
That is top 25% of utility patents granted in 2019 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.