Term ends Jun 1, 2027 · High confidence
20-year base term ended Sep 1, 2025
Filed Sep 1, 2005 as application 11/218,147 · Granted May 26, 2009
Base term plus 638 days of patent term adjustment (USPTO delay)
Today
2005
2027
Clock starts
Sep 1, 2005
Sep 1, 2005
Term ends
Jun 1, 2027
Jun 1, 2027
Granted
May 26, 2009
May 26, 2009
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
638
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.
This patent's term runs 638 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 Sep 1, 2005, when this application, 11/218,147, was filed | Sep 1, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +638 days, USPTO patent term adjustment record | Jun 1, 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 | Jun 1, 2027 | High confidence |
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 1, 2005 Reel 16956, frame 524 | Althoff, Markus; Gharibian-saki, Devin | Syskonnect GmbH | Assignment of Assignor's Interest |
| Apr 14, 2009 Reel 22541, frame 648 | Marvell Semiconductor Germany GmbH | Marvell International Ltd. | Assignment of Assignor's Interest |
| Feb 20, 2020 Reel 52918, frame 1 | Marvell International Ltd. | Cavium International | Assignment of Assignor's Interest |
| Jun 16, 2020 Reel 53475, frame 1 | Cavium International | Marvell Asia Pte, Ltd. | Assignment of Assignor's Interest |
| Jul 30, 2020 Reel 53350, frame 677 | Syskonnect GmbH | Marvell Semiconductor Germany GmbH | 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
Jun 2027
Term ends Jun 1, 2027. No further fees fall due before then
Note
The 638 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 2009 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.