Term ends Mar 3, 2030 · High confidence
20-year base term ended Apr 12, 2026
Held by Mesoblast, Inc.
Filed Sep 28, 2008 as application 11/918,593 · Granted Feb 5, 2013
Base term plus 1421 days of patent term adjustment (USPTO delay)
Today
2006
2030
Clock starts
Apr 12, 2006
Apr 12, 2006
Term ends
Mar 3, 2030
Mar 3, 2030
Granted
Feb 5, 2013
Feb 5, 2013
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
1,421
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.
8
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 1421 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 Apr 12, 2006, when application PCT/AU2006/000494, the earliest non-provisional in its chain, was filed (this one was filed Sep 28, 2008) | Apr 12, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1421 days, USPTO patent term adjustment record | Mar 3, 2030 | 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 | Mar 3, 2030 | High confidence |
This family
| US 8,367,405 | this patent Mar 2030 | Mar 2030 |
| Application 13/736,790 | Abandoned not computed | not computed |
| Application 14/621,470 | Abandoned not computed | not computed |
| US 9,783,617 | Term ended Apr 2026 | Apr 2026 |
| Application 15/651,469 | Abandoned not computed | not computed |
| US 12,275,801 | In force Sep 2028 | Sep 2028 |
| Application 19/080,304 | Pending not computed | not computed |
7 of 8 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 |
|---|---|---|---|
| Sep 22, 2008 Reel 21576, frame 114 | Gronthos, Stan; Zannettino, Andrew Christopher William; Simmons, Paul John | Angioblast Systems, Inc. | Assignment of Assignor's Interest |
| May 10, 2012 Reel 28192, frame 789 | Angioblast Systems, Inc. | Mesoblast, Inc. | Change of Name |
| Mar 28, 2018 Reel 45759, frame 682 | Mesoblast, Inc. | Hercules Capital, Inc., as Administrative and Collateral Agent | Intellectual Property Security Agreement |
| Dec 10, 2021 Reel 58957, frame 447 | Mesoblast Limited Acn 109 431 870; Mesoblast UK Limited; Mesoblast, Inc. (Formerly Known as Angioblast, Inc.); Mesoblast International Sàrl | Oaktree Fund Administration, LLC | Security Interest |
| Jul 30, 2025 Reel 72294, frame 555 | Hercules Capital, Inc., as Agent | Mesoblast, Inc. | Release of Intellectual Property Security Agreement at Reel/Frame No. 45759/0682 |
| Jan 2, 2026 Reel 74174, frame 183 | Oaktree Fund Administration, LLC, as Agent | Mesoblast Limited; Mesoblast UK Limited; Mesoblast, Inc. (Formerly Known as Angioblast, Inc.); Mesoblast International Sàrl | Release of Security Interest in Intellectual Property |
| Jan 2, 2026 reel/frame not recorded | Oaktree Fund Administration, LLC, as Agent | Mesoblast Limited | Release of Security Interest in Intellectual Property |
| Jan 2, 2026 reel/frame not recorded | Oaktree Fund Administration, LLC, as Agent | Mesoblast UK Limited | Release of Security Interest in Intellectual Property |
| Jan 2, 2026 reel/frame not recorded | Oaktree Fund Administration, LLC, as Agent | Mesoblast, Inc. (Formerly Known as Angioblast, Inc.) | Release of Security Interest in Intellectual Property |
| Jan 2, 2026 reel/frame not recorded | Oaktree Fund Administration, LLC, as Agent | Mesoblast International Sàrl | Release of Security Interest in Intellectual Property |
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
Mar 2030
Term ends Mar 3, 2030. No further fees fall due before then
Note
The 1421 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
87
later US patents cite this one
That is top 10% 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.