Term ends Aug 8, 2032 · High confidence
20-year base term ends Jul 25, 2032
Held by AstraZeneca AB
Filed Jul 25, 2012 as application 13/557,871 · Granted Feb 3, 2015
Base term plus 14 days of patent term adjustment (USPTO delay)
Today
2012
2032
Clock starts
Jul 25, 2012
Jul 25, 2012
Term ends
Aug 8, 2032
Aug 8, 2032
Granted
Feb 3, 2015
Feb 3, 2015
base term
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
14
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.
10
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 14 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 25, 2012, when this application, 13/557,871, was filed | Jul 25, 2032 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +14 days, USPTO patent term adjustment record | Aug 8, 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Aug 8, 2032 | High confidence |
This family
| US 8,946,235 | this patent Aug 2032 | Aug 2032 |
| US 9,732,058 | In force Jul 2032 | Jul 2032 |
| US 10,017,493 | In force Jul 2032 | Jul 2032 |
| Application 15/991,578 | Abandoned not computed | not computed |
| US 10,858,336 | In force no later than Jul 2032 | no later than Jul 2032 |
| US 11,524,951 | In force Jul 2032 | Jul 2032 |
| Application 17/979,342 | Abandoned not computed | not computed |
| Application 18/334,705 | Abandoned not computed | not computed |
8 of 10 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 |
|---|---|---|---|
| Nov 14, 2012 Reel 29294, frame 350 | Murugan, Chandrashekar Reddy C; Murugan, Andiappan; Kadambar, Vasantha Krishna | AstraZeneca India Private Limited | Assignment of Assignor's Interest |
| Nov 14, 2012 Reel 29294, frame 400 | AstraZeneca India Private Limited | AstraZeneca AB | Assignment of Assignor's Interest |
| Nov 14, 2012 Reel 29294, frame 557 | Butterworth, Sam; Finlay, Maurice Raymond Verschoyle; Ward, Richard Andrew; Redfearn, Heather Marie | AstraZeneca UK Limited | Assignment of Assignor's Interest |
| Nov 14, 2012 Reel 29294, frame 594 | AstraZeneca UK Limited | AstraZeneca AB | Assignment of Assignor's Interest |
| Dec 9, 2013 Reel 31740, frame 44 | Chuaqui, Claudio Edmundo | AstraZeneca Pharmaceuticals LP | Assignment of Assignor's Interest |
| Dec 9, 2013 Reel 31740, frame 84 | AstraZeneca Pharmaceuticals LP | AstraZeneca UK Limited | Assignment of Assignor's Interest |
| Dec 9, 2013 Reel 31740, frame 127 | AstraZeneca UK Limited | AstraZeneca AB | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Aug 2032
Term ends Aug 8, 2032. No further fees fall due before then
Note
The 14 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
45
later US patents cite this one
That is top 10% of utility patents granted in 2015 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.