Term ended Jan 25, 2024 · High confidence
20-year base term ended Oct 22, 2022
Held by Rampart Asset Management, LLC
Filed Sep 14, 2007 as application 11/855,993 · Granted Jun 21, 2011
Base term plus 460 days of patent term adjustment (USPTO delay)
Today
Term ended Jan 25, 2024
2002
2026
Clock starts
Oct 22, 2002
Oct 22, 2002
Term ended
Jan 25, 2024
Jan 25, 2024
Granted
Jun 21, 2011
Jun 21, 2011
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
460
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.
10
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 460 days past its 20-year base term on prosecution delay. All three maintenance fees were paid, so no fee lapse ended it. 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 Oct 22, 2002, when application 10/278,708, the earliest non-provisional in its chain, was filed (this one was filed Sep 14, 2007) | Oct 22, 2022 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +460 days, USPTO patent term adjustment record | Jan 25, 2024 | 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 | term ended | High confidence |
| Computed term end | The steps above, in order | Jan 25, 2024 | High confidence |
This family
| US 7,668,276 | In force Jul 2028 | Jul 2028 |
| US 7,965,567 | this patent Jan 2024 | Jan 2024 |
| US 8,542,787 | Term ended May 2023 | May 2023 |
| US 9,123,433 | Term ended Jan 2023 | Jan 2023 |
| US 9,099,194 | Term ended Jan 2023 | Jan 2023 |
| US 9,367,248 | Term ended Oct 2022 | Oct 2022 |
| US 9,721,642 | Term ended Oct 2022 | Oct 2022 |
| US 10,192,609 | Term ended Oct 2022 | Oct 2022 |
8 of 10 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 |
|---|---|---|---|
| Jun 25, 2015 Reel 35908, frame 362 | Hampel, Craig E.; Perego, Richard E.; Sidiropoulos, Stefanos S.; Tsern, Ely K.; Ware, Frederick A. | Rambus Inc. | Assignment of Assignor's Interest |
| Dec 2, 2021 Reel 58298, frame 836 | Rambus Inc. | Highlands LLC | Assignment of Assignor's Interest |
| Dec 10, 2021 Reel 58956, frame 139 | Highlands LLC | Rampart Asset Management, 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
Note
The 460 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
12
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.