Also listed on Vivatech, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends May 25, 2027 · High confidence
20-year base term ended Nov 6, 2026
Filed Jul 2, 2008 as application 12/087,434 · Granted May 28, 2013
Base term plus 200 days of patent term adjustment (USPTO delay)
Today
2006
2027
Clock starts
Nov 6, 2006
Nov 6, 2006
Term ends
May 25, 2027
May 25, 2027
Granted
May 28, 2013
May 28, 2013
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
200
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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 runs 200 days past its 20-year base term on 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 Nov 6, 2006, when application PCT/FR2006/002462, the earliest non-provisional in its chain, was filed (this one was filed Jul 2, 2008) | Nov 6, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +200 days, USPTO patent term adjustment record | May 25, 2027 | 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 | May 25, 2027 | High confidence |
This family
| US 8,449,587 | this patent May 2027 | May 2027 |
| US 8,997,752 | Term ended Nov 2026 | Nov 2026 |
2 of 4 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 |
|---|---|---|---|
| Feb 4, 2009 Reel 22242, frame 68 | Heatwave Technology | Ekkyo | Assignment of Assignor's Interest |
| Feb 4, 2009 Reel 22347, frame 319 | Cornil, Alain | Heatwave Technology | Assignment of Assignor's Interest |
| Sep 26, 2012 Reel 29029, frame 753 | Ekkyo Company | Vivatech Company | Assignment of Assignor's Interest |
| Jan 26, 2017 Reel 41504, frame 834 | Vivatech Company | Laboratoires Urgo | Merger |
| Jan 27, 2017 Reel 41517, frame 489 | Laboratoires Urgo | Urgo Recherche Innovation et Developpement | 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
May 2027
Term ends May 25, 2027. No further fees fall due before then
Note
The 200 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
7
later US patents cite this one
That is below the median of utility patents granted in 2013 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.