Term ends Jun 9, 2035 · High confidence
20-year base term ends Oct 13, 2034
Held by X-Flow B.V.
Filed Apr 12, 2016 as application 15/028,747 · Granted Aug 27, 2019
Base term plus 239 days of patent term adjustment (USPTO delay)
Today
2014
2035
Clock starts
Oct 13, 2014
Oct 13, 2014
Term ends
Jun 9, 2035
Jun 9, 2035
Granted
Aug 27, 2019
Aug 27, 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
239
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 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.
17
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 239 days past its 20-year base term on prosecution delay. 1 of 3 maintenance fees is 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 13, 2014, when application PCT/NL2014/050710, the earliest non-provisional in its chain, was filed (this one was filed Apr 12, 2016) | Oct 13, 2034 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +239 days, USPTO patent term adjustment record | Jun 9, 2035 | 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 | 1 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jun 9, 2035 | High confidence |
This family
| Application 12/301,660 | Abandoned not computed | not computed |
| US 8,227,396 | In force Jul 2028 | Jul 2028 |
| US 8,801,867 | In force Jul 2028 | Jul 2028 |
| US D669,960 | Term ended Oct 2026 | Oct 2026 |
| US 9,950,299 | Lapsed on the fee record Apr 2022 | Apr 2022 |
| US 9,504,964 | In force Feb 2033 | Feb 2033 |
| US 10,266,439 | In force Nov 2028 | Nov 2028 |
| US 10,391,453 | this patent Jun 2035 | Jun 2035 |
8 of 17 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 |
|---|---|---|---|
| Jun 2, 2016 Reel 38786, frame 586 | Blankert, Bastiaan; Borgerink, Rob | X-Flow B.V. | 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.
What's changing
Jun 2035
Term ends Jun 9, 2035. Maintenance fees still fall due before then
Note
The 239 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
1
later US patent cites this one
That is below the median 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.