Collateral for a security interest recorded Apr 25, 2018 (Bank of America, N.A.).
Term ends Oct 23, 2031 · High confidence
20-year base term ends Mar 12, 2028
Held by Marvell Semiconductor, Inc.
Filed Mar 12, 2008 as application 12/047,115 · Granted Dec 17, 2013
Base term plus 1320 days of patent term adjustment (USPTO delay)
Today
2008
2031
Clock starts
Mar 12, 2008
Mar 12, 2008
Term ends
Oct 23, 2031
Oct 23, 2031
Granted
Dec 17, 2013
Dec 17, 2013
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
1,320
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 1320 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 Mar 12, 2008, when this application, 12/047,115, was filed | Mar 12, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1320 days, USPTO patent term adjustment record | Oct 23, 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Oct 23, 2031 | 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 |
|---|---|---|---|
| Apr 14, 2008 Reel 20796, frame 343 | Subramanian, Anand; Niccum, Phillip K. | Kellogg Brown & Root LLC | Assignment of Assignor's Interest |
| Mar 16, 2011 Reel 25966, frame 148 | Walch, James A.; Krantz, Leon A. | Marvell Semiconductor, Inc. | Assignment of Assignor's Interest |
| Apr 25, 2018 Reel 46022, frame 413 | Kellogg Brown & Root LLC | Bank of America, N.A., as Administrative Agent | Security 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Oct 2031
Term ends Oct 23, 2031. No further fees fall due before then
Note
The 1320 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
59
later US patents cite this one
That is top 10% of utility patents granted in 2013 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.