Collateral for a security interest recorded Nov 3, 2020 (Morgan Stanley Senior Funding, Inc.).
Term ends Dec 5, 2026 · High confidence
20-year base term ends Dec 5, 2026
Filed Dec 5, 2006 as application 11/566,767 · Granted Dec 30, 2008
Base term, 20 years from filing
Today
2006
2026
Clock starts
Dec 5, 2006
Dec 5, 2006
Term ends
Dec 5, 2026
Dec 5, 2026
Granted
Dec 30, 2008
Dec 30, 2008
base term
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
None
Term adjustment
No prosecution delay on this record.
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 is its 20-year base term, with no adjustment for 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 Dec 5, 2006, when this application, 11/566,767, was filed | Dec 5, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | 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 | Dec 5, 2026 | 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 |
|---|---|---|---|
| Dec 5, 2006 Reel 18582, frame 943 | Raghavan, Vijay Kumar Srinivasa; Hirose, Ryan Tasuo | Cypress Semiconductor Corp. | Assignment of Assignor's Interest |
| Mar 21, 2015 Reel 35240, frame 429 | Cypress Semiconductor Corporation; Spansion LLC | Morgan Stanley Senior Funding, Inc. | Security Interest |
| May 4, 2019 Reel 49086, frame 803 | Cypress Semiconductor Corporation | Longitude Flash Memory Solutions Ltd. | Assignment of Assignor's Interest |
| May 7, 2019 reel/frame not recorded | Morgan Stanley Senior Funding, Inc. | Cypress Semiconductor Corporation | Release of Security Interest |
| May 7, 2019 reel/frame not recorded | Morgan Stanley Senior Funding, Inc. | Spansion LLC | Release of Security Interest |
| May 7, 2019 Reel 49109, frame 573 | Morgan Stanley Senior Funding, Inc. | Cypress Semiconductor Corporation; Spansion LLC | Release of Security Interest |
| Nov 3, 2020 Reel 58002, frame 470 | Cypress Semiconductor Corporation; Spansion LLC | Morgan Stanley Senior Funding, Inc. | Corrective Assignment to Correct the 8647899 Previously Recorded on Reel 035240 Frame 0429. Assignor(S) Hereby Confirms the Security Interst. |
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
Dec 2026
Term ends Dec 5, 2026. No further fees fall due before then
Citations
5
later US patents cite 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
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.