Term ends Oct 26, 2027 · High confidence
20-year base term ends Oct 26, 2027
Held by Valmet AB
Filed Sep 3, 2010 as application 12/875,655 · Granted Aug 2, 2011
Base term, 20 years from filing
Today
2007
2027
Clock starts
Oct 26, 2007
Oct 26, 2007
Term ends
Oct 26, 2027
Oct 26, 2027
Granted
Aug 2, 2011
Aug 2, 2011
base term
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
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
3 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.
4
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 is its 20-year base term, with no adjustment for prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 26, 2007, when application 11/924,835, the earliest non-provisional in its chain, was filed (this one was filed Sep 3, 2010) | Oct 26, 2027 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Oct 26, 2027 | High confidence |
This family
| US 7,811,418 | In force Feb 2029 | Feb 2029 |
| US 7,988,829 | this patent Oct 2027 | Oct 2027 |
| US 8,092,651 | In force Oct 2027 | Oct 2027 |
| US 8,206,555 | In force Oct 2027 | Oct 2027 |
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 |
|---|---|---|---|
| Feb 18, 2013 Reel 29822, frame 770 | Metso Paper Karlstad AB | Metso Paper Sweden AB | Merger |
| Mar 1, 2013 Reel 29904, frame 300 | Metso Paper Karlstad AB | Metso Paper Sweden AB | Corrective Assignment to Correct the Receiving Party's Address Previously Recorded on Reel 029822 Frame 0770. Assignor(S) Hereby Confirms the Receiving Party's Address Is Gustaf Gidlofs Vag 4, 851 94 Sundsvall, Sweden. |
| Feb 18, 2014 Reel 32271, frame 186 | Metso Paper Sweden AB | Valmet AB | Change of Name |
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
Oct 2027
Term ends Oct 26, 2027. No further fees fall due before then
Citations
37
later US patents cite this one
That is top 25% of utility patents granted in 2011 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.