Also listed on Corestreet, Ltd., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Jan 14, 2027 · High confidence
20-year base term ended Jan 10, 2025
Held by Assa Abloy AB
Filed Jan 10, 2005 as application 11/032,520 · Granted Jun 21, 2011
Base term plus 734 days of patent term adjustment (USPTO delay)
Today
2005
2027
Clock starts
Jan 10, 2005
Jan 10, 2005
Term ends
Jan 14, 2027
Jan 14, 2027
Granted
Jun 21, 2011
Jun 21, 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
734
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 734 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 10, 2005, when this application, 11/032,520, was filed | Jan 10, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +734 days, USPTO patent term adjustment record | Jan 14, 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 | Jan 14, 2027 | 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 |
|---|---|---|---|
| May 13, 2005 Reel 16557, frame 388 | Engberg, David; Libin, Phil; Micali, Silvio | Corestreet, Ltd. | Assignment of Assignor's Interest |
| Dec 16, 2005 Reel 16902, frame 444 | Corestreet, Ltd. | Assa Abloy Identification Technology Group AB | Security Agreement |
| Jan 26, 2007 Reel 18806, frame 814 | Assa Abloy Identification Technology Group AB | Assa Abloy AB | Assignment of Security Agreement |
| Oct 8, 2013 Reel 31361, frame 975 | Assa Abloy AB | Corestreet, Ltd. | Release of Security Interest |
| Mar 11, 2014 Reel 32404, frame 759 | Corestreet Ltd. | Assa Abloy AB | Assignment of Assignor's 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
Jan 2027
Term ends Jan 14, 2027. No further fees fall due before then
Note
The 734 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
48
later US patents cite this one
That is top 25% 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.