Lapsed Nov 15, 2023 on the fee record · High confidence
20-year base term ends Mar 9, 2027
Third maintenance fee unpaid; grace period ended.
Held by Coprecitec, S.L.
Filed Sep 24, 2008 as application 12/237,136 · Granted Nov 15, 2011
Base term, 20 years from filing, plus 632 days of patent term adjustment (USPTO delay)
Today
Lapsed Nov 15, 2023
2007
2028
Clock starts
Mar 9, 2007
Mar 9, 2007
No longer in force
Nov 15, 2023
Nov 15, 2023
Granted
Nov 15, 2011
Nov 15, 2011
Term would have run to
Nov 30, 2028
Nov 30, 2028
base term
patent term adjustment
after the term ends
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
632
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 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.
5
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 Nov 30, 2028: its 20-year base term plus 632 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 Mar 9, 2007, when application 11/684,368, the earliest non-provisional in its chain, was filed (this one was filed Sep 24, 2008) | Mar 9, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +632 days, USPTO patent term adjustment record | Nov 30, 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 | 2 of 3 maintenance fees paid | lapsed Nov 15, 2023 | High confidence |
| Computed term end | The steps above, in order | Nov 15, 2023 | High confidence |
This family
| US 7,766,006 | In force Apr 2027 | Apr 2027 |
| US 8,057,219 | this patent Nov 2023 | Nov 2023 |
| US 8,118,590 | Lapsed on the fee record Feb 2024 | Feb 2024 |
| US 8,061,347 | Lapsed on the fee record Nov 2023 | Nov 2023 |
| Application 13/205,279 | Abandoned not computed | not computed |
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 |
|---|---|---|---|
| Oct 8, 2008 Reel 21662, frame 891 | Manning, John S | Desa IP, LLC | Assignment of Assignor's Interest |
| Oct 14, 2008 Reel 21681, frame 255 | Manning, John S | Desa IP, LLC | Corrective Assignment to Correct the Correspondent Name Previously Recorded on Reel 021662 Frame 0891. Assignor(S) Hereby Confirms the Conveyance: Assignment of Assignors Interest (SEE Document for Details).. |
| Jun 18, 2009 Reel 22845, frame 623 | Desa LLC; Desa Heating, LLC; Desa IP, LLC; DHP Holdings II Corporation | Coprecitec, S.l. | Assignment of Assignor's Interest |
| Jan 6, 2012 Reel 27496, frame 647 | Antxia Uribetxebarria, Jose Joaquin; Mateos Martin, Ruben | Coprecitec, S.l. | 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
Note
The 632 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
18
later US patents cite this one
That is above 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.