Collateral for a security interest recorded Jul 31, 2013 (Deerfield Private Design Fund II, L.P.).
Term ends Nov 24, 2028 · High confidence
20-year base term ended Jul 7, 2026
Held by Sermo, Inc.
Filed Jul 7, 2006 as application 11/483,393 · Granted Sep 13, 2011
Base term plus 871 days of patent term adjustment (USPTO delay)
Today
2006
2028
Clock starts
Jul 7, 2006
Jul 7, 2006
Term ends
Nov 24, 2028
Nov 24, 2028
Granted
Sep 13, 2011
Sep 13, 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
871
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 871 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 Jul 7, 2006, when this application, 11/483,393, was filed | Jul 7, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +871 days, USPTO patent term adjustment record | Nov 24, 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 | Nov 24, 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 |
|---|---|---|---|
| Nov 15, 2006 Reel 18602, frame 375 | Palestrant, Daniel; Gardner, Graham | Sermo, Inc. | Assignment of Assignor's Interest |
| Dec 29, 2010 Reel 25571, frame 360 | Sermo, Inc. | MMV Financial Inc. | Security Agreement |
| Jul 31, 2013 Reel 30922, frame 915 | Sermo, Inc. | Deerfield Private Design Fund II, L.P.; Deerfield Private Design International II, L.P. | Security Agreement |
| Jul 31, 2013 reel/frame not recorded | Sermo, Inc. | Deerfield Private Design Fund II, L.P. | Security Agreement |
| Jul 31, 2013 reel/frame not recorded | Sermo, Inc. | Deerfield Private Design International II, L.P. | Security Agreement |
| Jan 10, 2019 Reel 47959, frame 928 | MMV Financial Inc. | Sermo, Inc. | Release of Security Interest |
| Jan 14, 2019 Reel 47987, frame 384 | Deerfield Private Design Fund II, LP; Deerfield Private Design International II, LP | Sermo, Inc. | Release of Security Interest |
| Jul 7, 2020 Reel 53140, frame 425 | Worldone, Inc.; Sermo, Inc. | Silicon Valley Bank | Security Interest |
| Oct 27, 2023 Reel 65369, frame 845 | First-Citizens Bank & Trust Company | Sermo, Inc.; Worldone, Inc. | Release of Security Interest |
| Oct 27, 2023 Reel 65370, frame 170 | Sermo, Inc.; Worldone, Inc. | Pnc Bank, National Association | Security Interest |
| Oct 27, 2023 reel/frame not recorded | First-Citizens Bank & Trust Company | Sermo, Inc. | Release of Security Interest |
| Oct 27, 2023 reel/frame not recorded | First-Citizens Bank & Trust Company | Worldone, Inc. | Release of Security Interest |
| Feb 27, 2026 Reel 73922, frame 893 | Sermo, Inc.; Worldone, Inc. | Capital One, National Association | Security Interest |
| Mar 3, 2026 Reel 75025, frame 873 | Pnc Bank, National Association | Sermo, Inc.; Worldone, Inc. | Termination and Release of Intellectual Property Security Agreement |
| Mar 3, 2026 reel/frame not recorded | Pnc Bank, National Association | Sermo, Inc. | Termination and Release of Intellectual Property Security Agreement |
| Mar 3, 2026 reel/frame not recorded | Pnc Bank, National Association | Worldone, Inc. | Termination and Release of Intellectual Property Security Agreement |
| Mar 5, 2026 Reel 73978, frame 387 | Pnc Bank, National Association | Sermo, Inc.; Worldone, Inc. | Release of Security Interest |
| Mar 5, 2026 reel/frame not recorded | Pnc Bank, National Association | Sermo, Inc. | Release of Security Interest |
| Mar 5, 2026 reel/frame not recorded | Pnc Bank, National Association | Worldone, Inc. | Release of Security 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
Nov 2028
Term ends Nov 24, 2028. No further fees fall due before then
Note
The 871 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
9
later US patents cite this one
That is above 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.