Term ends Apr 7, 2030 · Medium confidence
20-year base term ends Dec 22, 2029
Why Medium: A parent in the chain could not be resolved.
Held by Sysmex Corporation
Filed Dec 30, 2014 as application 14/585,626 · Granted Apr 25, 2023
Base term plus 106 days of patent term adjustment (USPTO delay)
Today
2009
2030
Clock starts
Dec 22, 2009
Dec 22, 2009
Term ends
Apr 7, 2030
Apr 7, 2030
Granted
Apr 25, 2023
Apr 25, 2023
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
106
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,883,078, US 8,956,569, to Apr 7, 2030. The term already ends on or before that date, so the cap shortened nothing.
1 of 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it paid.
5
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 106 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 1 of 1 maintenance fees is paid so far. 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 Dec 22, 2009, when application 12/644,433, the earliest non-provisional in its chain, was filed (this one was filed Dec 30, 2014); a parent in its chain could not be resolved (the next row) | Dec 22, 2029 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +106 days, USPTO patent term adjustment record | Apr 7, 2030 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,883,078, US 8,956,569) | resolves to Apr 7, 2030, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 1 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Apr 7, 2030 | Medium confidence |
This family
| US 8,956,569 | In force Dec 2031 | Dec 2031 |
| US 11,635,442 | this patent Apr 2030 | Apr 2030 |
| Application 17/365,740 | Abandoned not computed | not computed |
| US 11,630,115 | In force Dec 2029 | Dec 2029 |
| Application 18/297,552 | Abandoned not computed | not computed |
The applications whose file history this site holds. The family may have others.
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
Apr 2030
Term ends Apr 7, 2030. No further fees fall due before then
Note
The 106 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 8,883,078, US 8,956,569, ends no earlier than this term, so it caps nothing.
Citations
3
later US patents cite this one
That is top 25% of utility patents granted in 2023 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.