Term ends Jun 16, 2031 · High confidence
20-year base term ends Nov 16, 2026
Filed Nov 16, 2006 as application 11/560,476 · Granted Mar 7, 2017
Base term plus 1673 days of patent term adjustment (USPTO delay)
Today
2006
2031
Clock starts
Nov 16, 2006
Nov 16, 2006
Term ends
Jun 16, 2031
Jun 16, 2031
Granted
Mar 7, 2017
Mar 7, 2017
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
1,673
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.
60
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 1673 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are 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 Nov 16, 2006, when this application, 11/560,476, was filed | Nov 16, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1673 days, USPTO patent term adjustment record | Jun 16, 2031 | 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 | In force | High confidence |
| Computed term end | The steps above, in order | Jun 16, 2031 | High confidence |
This family
| US 9,589,686 | this patent Jun 2031 | Jun 2031 |
| Application 12/325,653 | Abandoned not computed | not computed |
| US 8,364,419 | In force Aug 2030 | Aug 2030 |
| Application 12/824,436 | Abandoned not computed | not computed |
| US 8,936,191 | In force Nov 2033 | Nov 2033 |
| US 8,542,023 | In force Dec 2031 | Dec 2031 |
| Application 12/977,568 | Abandoned not computed | not computed |
| US 8,542,024 | In force Dec 2031 | Dec 2031 |
8 of 60 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 |
|---|---|---|---|
| Nov 16, 2006 Reel 18526, frame 833 | Potyrailo, Radislav Alexandrovich; Monk, David James; Tamaki, Ryo | General Electric Company | Assignment of Assignor's Interest |
| Nov 9, 2023 Reel 65507, frame 98 | General Electric Company | GE Hitachi Nuclear Energy Americas LLC | 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 2031
Term ends Jun 16, 2031. Maintenance fees still fall due before then
Note
The 1673 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
33
later US patents cite this one
That is top 10% of utility patents granted in 2017 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.