Collateral for a security interest recorded Jun 22, 2023 (Morgan Stanley Senior Funding, Inc., as the Collateral Agent).
Term ends Apr 7, 2027 · High confidence
20-year base term ended Jan 20, 2026
Held by Allegro Microsystems, LLC
Filed Jan 20, 2006 as application 11/335,944 · Granted Aug 3, 2010
Base term plus 442 days of patent term adjustment (USPTO delay)
Today
2006
2027
Clock starts
Jan 20, 2006
Jan 20, 2006
Term ends
Apr 7, 2027
Apr 7, 2027
Granted
Aug 3, 2010
Aug 3, 2010
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
442
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.
6
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 442 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 Jan 20, 2006, when this application, 11/335,944, was filed | Jan 20, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +442 days, USPTO patent term adjustment record | Apr 7, 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 | Apr 7, 2027 | High confidence |
This family
| US 7,768,083 | this patent Apr 2027 | Apr 2027 |
| US 8,629,520 | Term ended Jan 2026 | Jan 2026 |
| US 9,082,957 | Term ended no later than Jan 2026 | no later than Jan 2026 |
| US 8,952,471 | Term ended no later than Jan 2026 | no later than Jan 2026 |
| US 9,859,489 | Term ended no later than Jan 2026 | no later than Jan 2026 |
| US 10,069,063 | Term ended Jan 2026 | Jan 2026 |
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 |
|---|---|---|---|
| Jan 20, 2006 Reel 17502, frame 268 | Doogue, Michael C.; Taylor, William P.; Mangtani, Vijay | Allegro Microsystems, Inc. | Assignment of Assignor's Interest |
| Apr 10, 2013 Reel 30426, frame 178 | Allegro Microsystems, Inc. | Allegro Microsystems, LLC | Conversion and Name Change |
| Oct 1, 2020 Reel 53957, frame 620 | Allegro Microsystems, LLC | Mizuho Bank Ltd., as Collateral Agent | Patent Security Agreement |
| Oct 1, 2020 Reel 53957, frame 874 | Allegro Microsystems, LLC | Credit Suisse AG, Cayman Islands Branch, as Collateral Agent | Patent Security Agreement |
| Jun 22, 2023 Reel 64068, frame 459 | Allegro Microsystems, LLC | Morgan Stanley Senior Funding, Inc., as the Collateral Agent | Patent Security Agreement |
| Jun 22, 2023 Reel 64068, frame 360 | Mizuho Bank, Ltd., as Collateral Agent | Allegro Microsystems, LLC | Release of Security Interest in Patents (R/F 053957/0620) |
| Nov 1, 2023 Reel 65420, frame 572 | Credit Suisse AG, Cayman Islands Branch, as Collateral Agent | Allegro Microsystems, LLC | Release of Security Interest in Patents at Reel 053957/FRAME 0874 |
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
Apr 2027
Term ends Apr 7, 2027. No further fees fall due before then
Note
The 442 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
237
later US patents cite this one
That is top 5% of utility patents granted in 2010 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.