Collateral for a security interest recorded Oct 28, 2019 (Mufg Union Bank, N.A.).
Term ended Nov 11, 2026 · High confidence
20-year base term ended Sep 14, 2025
Filed Sep 14, 2005 as application 11/227,657 · Granted Dec 9, 2008
Base term plus 423 days of patent term adjustment (USPTO delay)
Today
Term ended Nov 11, 2026
2005
2026
Clock starts
Sep 14, 2005
Sep 14, 2005
Term ended
Nov 11, 2026
Nov 11, 2026
Granted
Dec 9, 2008
Dec 9, 2008
base term
patent term adjustment
after the term ends
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
423
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 423 days past its 20-year base term on prosecution delay. All three maintenance fees were paid, so no fee lapse ended it. 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 14, 2005, when this application, 11/227,657, was filed | Sep 14, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +423 days, USPTO patent term adjustment record | Nov 11, 2026 | 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 | term ended | High confidence |
| Computed term end | The steps above, in order | Nov 11, 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 |
|---|---|---|---|
| Sep 14, 2005 Reel 17002, frame 786 | Wiseman, Joseph William | Spansion LLC | Assignment of Assignor's Interest |
| Jun 4, 2010 Reel 24522, frame 338 | Spansion LLC; Spansion Inc.; Spansion Technology Inc.; Spansion Technology LLC | Barclays Bank PLC | Security Agreement |
| Mar 13, 2015 reel/frame not recorded | Barclays Bank PLC | Spansion LLC | Release of Security Interest |
| Mar 13, 2015 reel/frame not recorded | Barclays Bank PLC | Spansion Inc. | Release of Security Interest |
| Mar 13, 2015 reel/frame not recorded | Barclays Bank PLC | Spansion Technology LLC | Release of Security Interest |
| Mar 13, 2015 Reel 35201, frame 159 | Barclays Bank PLC | Spansion LLC; Spansion Inc.; Spansion Technology LLC | Release of Security Interest |
| Mar 21, 2015 Reel 35240, frame 429 | Cypress Semiconductor Corporation; Spansion LLC | Morgan Stanley Senior Funding, Inc. | Security Interest |
| Jul 1, 2015 Reel 36044, frame 745 | Spansion, LLC | Cypress Semiconductor Corporation | Assignment of Assignor's Interest |
| Sep 26, 2019 reel/frame not recorded | Mufg Union Bank, N.A., as Collateral Agent | Cypress Semiconductor Corporation | Partial Release of Security Interest in Patents |
| Sep 26, 2019 reel/frame not recorded | Mufg Union Bank, N.A., as Collateral Agent | Spansion LLC | Partial Release of Security Interest in Patents |
| Sep 26, 2019 Reel 50500, frame 369 | Mufg Union Bank, N.A., as Collateral Agent | Cypress Semiconductor Corporation; Spansion LLC | Partial Release of Security Interest in Patents |
| Oct 23, 2019 Reel 50799, frame 215 | Cypress Semiconductor Corporation | Longitude Flash Memory Solutions Limited | Assignment of Assignor's Interest |
| Oct 28, 2019 Reel 50896, frame 366 | Morgan Stanley Senior Funding, Inc. | Mufg Union Bank, N.a. | Assignment and Assumption of Security Interest in Intellectual Property |
| 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
Note
The 423 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
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
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.