Lapsed May 24, 2015 on the fee record · High confidence
20-year base term ended Dec 13, 2025
First maintenance fee unpaid; grace period ended.
Held by Alethia Biotherapeutics Inc.
Filed Feb 25, 2008 as application 11/792,932 · Granted May 24, 2011
Base term, 20 years from filing, plus 187 days of patent term adjustment (USPTO delay)
Today
Lapsed May 24, 2015
2005
2026
Clock starts
Dec 13, 2005
Dec 13, 2005
No longer in force
May 24, 2015
May 24, 2015
Granted
May 24, 2011
May 24, 2011
Term would have run to
Jun 18, 2026
Jun 18, 2026
base term
patent term adjustment
after the term ends
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
187
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
0 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.
38
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Jun 18, 2026: its 20-year base term plus 187 days of term adjustment for prosecution delay. 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 13, 2005, when application PCT/CA2005/001917, the earliest non-provisional in its chain, was filed (this one was filed Feb 25, 2008) | Dec 13, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +187 days, USPTO patent term adjustment record | Jun 18, 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 | 0 of 3 maintenance fees paid | lapsed May 24, 2015 | High confidence |
| Computed term end | The steps above, in order | May 24, 2015 | High confidence |
This family
| Application 19/598,121 | Pending not computed | not computed |
| US 7,947,436 | this patent May 2015 | May 2015 |
| US 8,044,179 | Term ended Nov 2026 | Nov 2026 |
| US 8,216,582 | In force Aug 2028 | Aug 2028 |
| US 8,426,562 | Term ended Nov 2026 | Nov 2026 |
| Application 13/082,107 | Abandoned not computed | not computed |
| US 9,855,291 | Lapsed on the fee record Jan 2026 | Jan 2026 |
| US 8,580,257 | Lapsed on the fee record Nov 2025 | Nov 2025 |
8 of 38 applications in this family shown, earliest filings first. 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 |
|---|---|---|---|
| Feb 15, 2008 Reel 20520, frame 806 | Sooknanan, Roy Rabindranauth; Tremblay, Gilles Bernard; Filion, Mario | Alethia Biotherapeutics Inc. | Assignment of Assignor's Interest |
| Nov 13, 2008 Reel 21827, frame 245 | Alethia Biotherapeutics, Inc. | Alethia Biotherapeutics, Inc. | Change of Address of Assignee |
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 187 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
0
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.