Lapsed Sep 20, 2015 on the fee record · High confidence
20-year base term ends May 30, 2027
First maintenance fee unpaid; grace period ended.
Held by Valmet Technologies, Inc.
Filed Oct 28, 2008 as application 12/226,798 · Granted Sep 20, 2011
Base term, 20 years from filing, plus 401 days of patent term adjustment (USPTO delay)
Today
Lapsed Sep 20, 2015
2007
2028
Clock starts
May 30, 2007
May 30, 2007
No longer in force
Sep 20, 2015
Sep 20, 2015
Granted
Sep 20, 2011
Sep 20, 2011
Term would have run to
Jul 4, 2028
Jul 4, 2028
base term
patent term adjustment
after the term ends
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
401
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
0 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.
33
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Jul 4, 2028: its 20-year base term plus 401 days of term adjustment for prosecution delay. 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 May 30, 2007, when application PCT/SE2007/050385, the earliest non-provisional in its chain, was filed (this one was filed Oct 28, 2008) | May 30, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +401 days, USPTO patent term adjustment record | Jul 4, 2028 | 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 | 0 of 3 maintenance fees paid | lapsed Sep 20, 2015 | High confidence |
| Computed term end | The steps above, in order | Sep 20, 2015 | High confidence |
This family
| US 7,214,172 | Lapsed on the fee record May 2015 | May 2015 |
| Application 10/509,981 | Abandoned not computed | not computed |
| US 7,325,464 | Lapsed on the fee record Feb 2016 | Feb 2016 |
| US 7,444,265 | Lapsed on the fee record Oct 2012 | Oct 2012 |
| US 8,092,653 | Lapsed on the fee record Jan 2020 | Jan 2020 |
| US 7,845,583 | Lapsed on the fee record Dec 2014 | Dec 2014 |
| US 8,038,844 | Lapsed on the fee record Oct 2019 | Oct 2019 |
| US 8,020,797 | this patent Sep 2015 | Sep 2015 |
8 of 33 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 |
|---|---|---|---|
| Mar 23, 2009 Reel 22437, frame 479 | Sahlin, Tomas; Eriksson, Mattias; Bystrom, Goran | Metso Paper, Inc. | Assignment of Assignor's Interest |
| Mar 27, 2014 Reel 32551, frame 426 | Metso Paper, Inc. | Valmet Technologies, Inc. | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Note
The 401 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
0
later US patents cite this one
That is below the median 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.