Also listed on Theravance, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Nov 22, 2026 · High confidence
20-year base term ended Oct 21, 2024
Held by Apotex Corp.
Filed Apr 8, 2008 as application 12/082,096 · Granted Aug 23, 2011
Base term plus 762 days of patent term adjustment (USPTO delay)
Today
2004
2026
Clock starts
Oct 21, 2004
Oct 21, 2004
Term ends
Nov 22, 2026
Nov 22, 2026
Granted
Aug 23, 2011
Aug 23, 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
762
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 7,531,623, to Nov 22, 2026. The term already ends on or before that date, so the cap shortened nothing.
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.
2
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 762 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 Oct 21, 2004, when application 10/970,128, the earliest non-provisional in its chain, was filed (this one was filed Apr 8, 2008) | Oct 21, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +762 days, USPTO patent term adjustment record | Nov 22, 2026 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 7,531,623) | resolves to Nov 22, 2026, no earlier than this term, so no change | 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 22, 2026 | High confidence |
This family
| US 7,531,623 | In force Jan 2027 | Jan 2027 |
| US 8,003,755 | this patent Nov 2026 | Nov 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 |
|---|---|---|---|
| Jun 12, 2014 Reel 33180, frame 571 | Theravance, Inc. | Theravance Biopharma Antibiotics IP, LLC | Assignment of Assignor's Interest |
| Dec 14, 2018 Reel 47909, frame 853 | Theravance Biopharma Antibiotics IP, LLC | Cumberland Pharmaceuticals Inc. | Assignment of Assignor's Interest |
| Apr 9, 2026 Reel 75376, frame 45 | Liu, Jyanwei; Lee, Junning | Theravance, Inc. | Assignment of Assignor's Interest |
| Aug 25, 2026 Reel 75763, frame 709 | Cumberland Pharmaceuticals Inc. | Apotex Corp. | 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
Nov 2026
Term ends Nov 22, 2026. No further fees fall due before then
Note
The 762 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 7,531,623, ends no earlier than this term, so it caps nothing.
Citations
1
later US patent cites 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.