Also listed on Daedalus Group LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Sep 16, 2032 · Low confidence
20-year base term ends Sep 13, 2031
Grace period ended Oct 28, 2026 · no payment on record as of the Nov 10, 2026 fee file · lapse expected
Held by Crosslayer Communications LLC
Filed Sep 13, 2011 as application 13/231,780 · Granted Oct 28, 2014
Base term plus 369 days of patent term adjustment (USPTO delay)
Today
2011
2032
Clock starts
Sep 13, 2011
Sep 13, 2011
Term ends
Sep 16, 2032
Sep 16, 2032
Granted
Oct 28, 2014
Oct 28, 2014
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
369
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 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.
3
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 369 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are paid so far. Confidence: Low: the grace period for its third maintenance fee ended Oct 28, 2026 with no payment on record. 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 13, 2011, when this application, 13/231,780, was filed | Sep 13, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +369 days, USPTO patent term adjustment record | Sep 16, 2032 | 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 | The grace period ended with no payment on record in the fee file | grace period ended Oct 28, 2026 | Low confidence |
| Computed term end | The steps above, in order | Sep 16, 2032 | Low confidence |
This family
| US 8,872,667 | this patent Sep 2032 | Sep 2032 |
| US 9,785,129 | In force Sep 2032 | Sep 2032 |
| US 10,007,243 | Lapsed on the fee record Jun 2026 | Jun 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 |
|---|---|---|---|
| Sep 14, 2011 Reel 26903, frame 910 | Bhageria, Gopal K.; Mak, Don T.; Monagle, Kevin M.; Ramanathan, Sri; Reboul, Jean-gael F.; Terry, Matthew A.; Trevathan, Matthew B. | International Business Machines Corporation | Assignment of Assignor's Interest |
| Nov 14, 2019 Reel 51032, frame 784 | International Business Machines Corporation | Daedalus Group LLC | Assignment of Assignor's Interest |
| Jan 27, 2020 Reel 51710, frame 445 | International Business Machines Corporation | Daedalus Group, LLC | Assignment of Assignor's Interest |
| Jan 29, 2020 Reel 51737, frame 191 | Daedalus Group, LLC | Daedalus Blue LLC | Assignment of Assignor's Interest |
| Jan 28, 2022 Reel 58895, frame 322 | Daedalus Blue LLC | Terrace Licensing LLC | Assignment of Assignor's Interest |
| Jan 29, 2022 Reel 58902, frame 482 | Daedalus Blue LLC | Terrace Licensing LLC | Assignment of Assignor's Interest |
| Apr 29, 2025 Reel 70975, frame 908 | Terrace Licensing LLC | Crosslayer Communications LLC | 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.
What's changing
Oct 28
Grace period ended Oct 28, 2026 with no payment on record. The term ends early once USPTO posts the lapse
Sep 2032
Term ends Sep 16, 2032.
Note
The 369 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
62
later US patents cite this one
That is top 10% of utility patents granted in 2014 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.