Term ends Oct 6, 2031 · Medium confidence

Computed 20-year base term

Why Medium: A parent in the chain could not be resolved.

Held by Mesoblast International SARL

Filed Dec 23, 2013 as application 14/138,265 · Granted Nov 28, 2017

Base term, 20 years from filing

Today

20 years from filing

Term ends Oct 6, 2031

2011 2031

Clock starts
Oct 6, 2011

Term ends
Oct 6, 2031

Granted
Nov 28, 2017

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

None

Term adjustment

No prosecution delay on this record.

None

Terminal disclaimer

No disclaimer on this record.

2 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.

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. 2 of 3 maintenance fees are paid so far. Confidence: Medium. 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 6, 2011, when application 13/267,363, the earliest non-provisional in its chain, was filed (this one was filed Dec 23, 2013); a parent in its chain could not be resolved (the next row)	Oct 6, 2031	High confidence
Continuity chain	A parent in the chain could not be resolved	dated from this application's own claim	Medium 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 3 maintenance fees paid	In force	High confidence
Computed term end	The steps above, in order	Oct 6, 2031	Medium confidence

This family

Application 13/267,363	Abandoned not computed	not computed
US 9,828,586	this patent Oct 2031	Oct 2031
US 9,963,678	In force no later than Oct 2031	no later than Oct 2031
US 10,550,369	In force Jan 2032	Jan 2032
US 11,708,560	In force Oct 2031	Oct 2031
US 12,410,405	In force Oct 2031	Oct 2031
Application 19/293,945	Pending not computed	not computed

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 22, 2014 Reel 34004, frame 353	Tom, Samson, DR.; Ton, Christopher, DR.; Danilkovitch, Alla, DR.	Osiris Therapeutics, Inc.	Assignment of Assignor's Interest
Oct 22, 2014 Reel 34004, frame 594	Osiris Therapeutics, Inc.	Mesoblast International SARL	Assignment of Assignor's Interest
Mar 28, 2018 Reel 45759, frame 917	Mesoblast International SARL	Hercules Capital, Inc., as Administrative and Collateral Agent	Intellectual Property Security Agreement
Jul 10, 2018 Reel 46515, frame 222	Mesoblast International SARL	NQP SPV II, L.P., as Administrative Agent 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 72297, frame 753	Hercules Capital, Inc., as Agent	Mesoblast International SARL	Release of Intellectual Property Security Agreement at Reel/Frame No. 45759/0917
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
Jun 29, 2026 Reel 75853, frame 93	NQP SPV II, L.P., as Agent	Mesoblast International Sàrl	Release of Security Interest in Intellectual Property Collateral at Reel/Frame No. 46515/0222

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.

What's changing

Oct 2031

Term ends Oct 6, 2031. Maintenance fees still fall due before then

Citations

later US patents cite this one

That is top 10% 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.

In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.

Enhanced MSC Preparations