Term ended Apr 12, 2026 · High confidence
20-year base term ended Apr 12, 2026
Held by Mesoblast, Inc.
Filed May 27, 2016 as application 15/167,934 · Granted Oct 10, 2017
Base term, 20 years from filing
Today
Term ended Apr 12, 2026
2006
2026
Clock starts
Apr 12, 2006
Apr 12, 2006
Term ended
Apr 12, 2026
Apr 12, 2026
Granted
Oct 10, 2017
Oct 10, 2017
base term
after the term ends
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
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
2 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. 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 is its 20-year base term, with no 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 Apr 12, 2006, when application PCT/AU2006/000494, the earliest non-provisional in its chain, was filed (this one was filed May 27, 2016) | Apr 12, 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 | None on file | no change | High confidence |
| Fee events | 2 of 2 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | Apr 12, 2026 | High confidence |
This family
| US 8,367,405 | In force 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 | this patent 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 |
|---|---|---|---|
| Feb 23, 2018 Reel 45018, frame 318 | Gronthos, Stan; Zannettino, Andrew Christopher William; Simmons, Paul John | Angioblast Systems, Inc. | Assignment of Assignor's Interest |
| Feb 23, 2018 Reel 45187, frame 26 | 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.
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Alerts on its grants, lapses and transfers.
Citations
2
later US patents cite this one
That is below the median of utility patents granted in 2017 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.