Also listed on Britestream Networks, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Jul 11, 2028 · High confidence
20-year base term ended Dec 19, 2025
Held by Ncipher Security Limited
Filed Dec 19, 2005 as application 11/312,010 · Granted Feb 1, 2011
Base term plus 935 days of patent term adjustment (USPTO delay)
Today
2005
2028
Clock starts
Dec 19, 2005
Dec 19, 2005
Term ends
Jul 11, 2028
Jul 11, 2028
Granted
Feb 1, 2011
Feb 1, 2011
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
935
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 935 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 Dec 19, 2005, when this application, 11/312,010, was filed | Dec 19, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +935 days, USPTO patent term adjustment record | Jul 11, 2028 | 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 | Jul 11, 2028 | 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 19, 2005 Reel 17360, frame 478 | Fischofer, William T. | Britestream Networks, Inc. | Assignment of Assignor's Interest |
| May 7, 2007 Reel 19365, frame 868 | Britestream Networks, Inc. | Ncipher Corporation Limited Acting by and Through Its Wholly Owned Subsidiary, Ncipher, Inc. | Asset Purchase Agreement (ATTACHED) |
| Sep 25, 2012 Reel 29018, frame 612 | Ncipher Corporation Ltd. | Thales e-Security Ltd. | Assignment of Assignor's Interest |
| Sep 25, 2012 Reel 29018, frame 784 | Thales e-Security Ltd. | Thales Holdings UK PLC | Assignment of Assignor's Interest |
| Mar 20, 2018 Reel 45657, frame 457 | Thales Holdings UK PLC | Thales Holdings UK PLC | Change of Address |
| Jan 23, 2020 Reel 51604, frame 526 | Thales Holdings UK PLC | Thales UK Limited | Change of Name |
| Jan 23, 2020 Reel 51604, frame 546 | Thales UK Limited | Ncipher Security Limited | Change of Name |
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
Jul 2028
Term ends Jul 11, 2028. No further fees fall due before then
Note
The 935 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
6
later US patents cite this one
That is below the median of utility patents granted in 2011 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.