Term ends no later than Nov 29, 2026 · Medium confidence
20-year base term ended Jun 27, 2025
In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.
Filed Jun 27, 2005 as application 11/167,756 · Granted Nov 11, 2008
Base term plus 520 days of patent term adjustment (USPTO delay)
Today
2005
2026
Clock starts
Jun 27, 2005
Jun 27, 2005
Ends no later than
Nov 29, 2026
Nov 29, 2026
Granted
Nov 11, 2008
Nov 11, 2008
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
520
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
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 520 days past its 20-year base term on prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. 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 Jun 27, 2005, when this application, 11/167,756, was filed | Jun 27, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +520 days, USPTO patent term adjustment record | Nov 29, 2026 | High confidence |
| Terminal disclaimer cap | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | 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 | no later than Nov 29, 2026 | Medium 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 7, 2005 Reel 16956, frame 802 | Pillay, Sanjay R.; Bounds, Brian F.; Gallagher, William Lynn | Cirrus Logic, Inc. | Assignment of Assignor's Interest |
| Feb 2, 2006 Reel 17523, frame 448 | Cirrus Logic, Inc. | Magnum Semiconductor, Inc. | Assignment of Assignor's Interest |
| Jun 12, 2006 Reel 17766, frame 5 | Magnum Semiconductor, Inc. | Silicon Valley Bank | Security Agreement |
| Jun 13, 2006 Reel 17766, frame 605 | Magnum Semiconductor, Inc. | Silicon Valley Bank as Agent for the Benefit of the Lenders | Security Agreement |
| Apr 29, 2013 Reel 30310, frame 764 | Silicon Valley Bank | Magnum Semiconductor, Inc. | Release of Security Interest |
| Apr 29, 2013 Reel 30310, frame 985 | Silicon Valley Bank , as Agent for the Benefit of the Lenders | Magnum Semiconductor, Inc. | Release of Security Interest |
| Oct 31, 2014 Reel 34114, frame 102 | Magnum Semiconductor, Inc. | Capital IP Investment Partners LLC, as Administrative Agent | Short-Form Patent Security Agreement |
| Apr 6, 2016 Reel 38366, frame 98 | Magnum Semiconductor, Inc. | Silicon Valley Bank | Security Agreement |
| Apr 15, 2016 Reel 38440, frame 565 | Capital IP Investment Partners LLC | Magnum Semiconductor, Inc. | Release of Security Interest |
| Apr 5, 2017 Reel 42166, frame 405 | Silicon Valley Bank | Magnum Semiconductor, Inc. | Release of Security Interest |
| Apr 5, 2017 Reel 42166, frame 431 | Integrated Device Technology, Inc.; Gigpeak, Inc.; Magnum Semiconductor, Inc.; Endwave Corporation; Chipx, Incorporated | JPMorgan Chase Bank, N.A., as Collateral Agent | Security Agreement |
| Aug 4, 2017 Reel 43207, frame 637 | Magnum Semiconductor, Inc. | Integrated Device Technology, Inc. | Assignment of Assignor's Interest |
| Mar 29, 2019 reel/frame not recorded | Jpmorgan Chase Bank, N.a. | Integrated Device Technology, Inc. | Release of Security Interest |
| Mar 29, 2019 reel/frame not recorded | Jpmorgan Chase Bank, N.a. | Gigpeak, Inc. | Release of Security Interest |
| Mar 29, 2019 reel/frame not recorded | Jpmorgan Chase Bank, N.a. | Chipx, Incorporated | Release of Security Interest |
| Mar 29, 2019 reel/frame not recorded | Jpmorgan Chase Bank, N.a. | Endwave Corporation | Release of Security Interest |
| Mar 29, 2019 reel/frame not recorded | Jpmorgan Chase Bank, N.a. | Magnum Semiconductor, Inc. | Release of Security Interest |
| Mar 29, 2019 Reel 48746, frame 1 | Jpmorgan Chase Bank, N.a. | Integrated Device Technology, Inc.; Gigpeak, Inc.; Chipx, Incorporated; Endwave Corporation; Magnum Semiconductor, Inc. | Release of 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
Nov 2026
Term ends no later than Nov 29, 2026. No further fees fall due before then
Note
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Note
The 520 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Nov 29, 2026. We will not guess the cap.
Citations
1
later US patent cites this one
That is below the median of utility patents granted in 2008 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
This computed term ends no later than the date shown; an unresolved terminal disclaimer may end it earlier. 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.