Term ends Feb 4, 2031 · High confidence
20-year base term ended Apr 28, 2026
Held by GlaxoSmithKline LLC
Filed Jan 18, 2012 as application 13/352,686 · Granted Apr 2, 2013
Base term, 20 years from filing
Today
2006
2031
Clock starts
Apr 28, 2006
Apr 28, 2006
Term ends
Feb 4, 2031
Feb 4, 2031
Granted
Apr 2, 2013
Apr 2, 2013
base term
fee events
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
None
Term adjustment
No prosecution delay on this record.
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.
25
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 is its 20-year base term, with no adjustment for 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 Apr 28, 2006, when application PCT/US2006/016604, the earliest non-provisional in its chain, was filed (this one was filed Jan 18, 2012) | Apr 28, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | None on record | no cap applied | High confidence |
| Patent term extension | +1,743 days, USPTO 35 U.S.C. 156 certificate | added to Apr 28, 2026: Feb 4, 2031 | High confidence |
| Fee events | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Feb 4, 2031 | High confidence |
This family
| Application PCT/US2006/016604 | PCT application no patent term | no patent term |
| US 8,129,385 | In force Oct 2027 | Oct 2027 |
| US 8,410,103 | this patent Feb 2031 | Feb 2031 |
| US 8,778,943 | Term ended Apr 2026 | Apr 2026 |
| US 9,051,337 | Term ended Apr 2026 | Apr 2026 |
| US 9,273,065 | Term ended Apr 2026 | Apr 2026 |
| Application 15/001,336 | Abandoned not computed | not computed |
| Application 15/086,616 | Abandoned not computed | not computed |
8 of 25 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 |
|---|---|---|---|
| Oct 16, 2012 Reel 29136, frame 545 | GlaxoSmithKline LLC | Viiv Healthcare Company | Assignment of Assignor's Interest |
| Sep 17, 2024 Reel 68606, frame 604 | Johns, Brian Alvin | Smithkline Beecham Corporation | Assignment of Assignor's Interest |
| Sep 17, 2024 Reel 68606, frame 866 | Kawasuji, Takashi; Taishi, Teruhiko; Taoda, Yoshiyuki | Shionogi & Co. Ltd. | Assignment of Assignor's Interest |
| Sep 17, 2024 Reel 68970, frame 391 | Smithkline Beecham Corporation | GlaxoSmithKline LLC | Change of Name |
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
Feb 2031
Term ends Feb 4, 2031. No further fees fall due before then
Citations
36
later US patents cite this one
That is top 25% of utility patents granted in 2013 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.