Term ends Feb 17, 2027 · Medium confidence
20-year base term ended Jul 25, 2026
Why Medium: The disclaimer's references carry disclaimers of their own not yet read (US 7,880,154), so the cap could be lower.
Filed Jan 7, 2011 as application 12/986,420 · Granted Apr 15, 2014
Base term plus 560 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2006
2027
Clock starts
Jul 25, 2006
Jul 25, 2006
Term ends
Feb 17, 2027
Feb 17, 2027
Granted
Apr 15, 2014
Apr 15, 2014
base term
patent term adjustment
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
560
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 7,880,154, US 7,906,770.
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.
17
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 560 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. All three maintenance fees are recorded paid; no more fees are due. Confidence: Medium. 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 Jul 25, 2006, when application PCT/CA2006/001225, the earliest non-provisional in its chain, was filed (this one was filed Jan 7, 2011) | Jul 25, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +560 days, USPTO patent term adjustment record | Feb 5, 2028 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 7,880,154, US 7,906,770) | capped to Feb 17, 2027 | Medium 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 | Feb 17, 2027 | Medium confidence |
This family
| US 7,906,770 | In force Nov 2027 | Nov 2027 |
| US 7,880,154 | In force no later than Feb 2027 | no later than Feb 2027 |
| US 8,696,538 | this patent Feb 2027 | Feb 2027 |
| US 9,050,459 | Term ended Jul 2026 | Jul 2026 |
| US 9,630,025 | Term ended Oct 2026 | Oct 2026 |
| US 9,687,677 | Term ended Jul 2026 | Jul 2026 |
| US 9,687,673 | Term ended Jul 2026 | Jul 2026 |
| US 9,687,678 | Term ended Jul 2026 | Jul 2026 |
8 of 17 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 |
|---|---|---|---|
| Sep 30, 2015 Reel 36696, frame 54 | Otto, Karl | Varian Medical Systems International AG | Assignment of Assignor's Interest |
| Jan 18, 2024 Reel 66352, frame 892 | Varian Medical Systems International AG | Siemens Healthineers International AG | Change of Name |
| Jan 24, 2024 Reel 66368, frame 448 | Varian Medical Systems International AG | Siemens Healthineers International AG | 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
Feb 2027
Term ends Feb 17, 2027. No further fees fall due before then
Note
The 560 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 7,880,154, US 7,906,770.
Citations
18
later US patents cite this one
That is above the median of utility patents granted in 2014 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.