Collateral for a security interest recorded Sep 7, 2023 (Morgan Stanley Senior Funding, Inc.).

Term ends Oct 30, 2035 · High confidence

Computed 20-year base term

Held by Insulet Corporation

Filed Dec 20, 2017 as application 15/848,622 · Granted Mar 31, 2020

Base term plus 184 days of patent term adjustment (USPTO delay)

Today

20 years from filing

Term ends Oct 30, 2035

2015 2035

Clock starts
Apr 29, 2015

Term ends
Oct 30, 2035

Granted
Mar 31, 2020

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

184

Days of term adjustment

Read from the USPTO patent term adjustment record, not recalculated here.

None

Terminal disclaimer

No disclaimer on this record.

1 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 runs 184 days past its 20-year base term on prosecution delay. 1 of 3 maintenance fees is paid so far. 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 29, 2015, when application 14/699,341, the earliest non-provisional in its chain, was filed (this one was filed Dec 20, 2017)	Apr 29, 2035	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	+184 days, USPTO patent term adjustment record	Oct 30, 2035	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	1 of 3 maintenance fees paid	In force	High confidence
Computed term end	The steps above, in order	Oct 30, 2035	High confidence

This family

US 9,878,097	In force Dec 2035	Dec 2035
US 10,603,433	this patent Oct 2035	Oct 2035
US 11,471,598	In force Sep 2035	Sep 2035

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
Jul 20, 2018 Reel 46410, frame 189	Estes, Mark C.	Asante Solutions, Inc.	Assignment of Assignor's Interest
Jul 20, 2018 Reel 46593, frame 918	Asante LLC	Bigfoot Biomedical, Inc.	Assignment of Assignor's Interest
Jul 20, 2018 Reel 46593, frame 949	Asante Solutions, Inc.	Asante LLC	Assignment of Assignor's Interest
Mar 12, 2021 Reel 55583, frame 44	Bigfoot Biomedical, Inc.	Madryn Health Partners, LP	Security Interest
Feb 10, 2023 Reel 62702, frame 145	Madryn Health Partners, LP	Madryn Fund Administration, LLC	Security Interest
Feb 17, 2023 Reel 62793, frame 316	Madryn Fund Administration, LLC	Bigfoot Biomedical, Inc.	Release of Security Interest
Mar 1, 2023 Reel 62900, frame 1	Bigfoot Biomedical, Inc.	Insulet Corporation	Assignment of Assignor's Interest
Jun 13, 2023 Reel 63937, frame 963	Estes, Mark C.	Asante Solutions, Inc.	Nunc Pro Tunc Assignment
Sep 7, 2023 Reel 64840, frame 181	Insulet Corporation	Morgan Stanley Senior Funding, Inc., as Collateral Agent	Security Agreement Supplement
Sep 12, 2024 Reel 68948, frame 172	Bigfoot Biomedical, Inc.	Madryn Health Partners, LP	Security Interest
Sep 12, 2024 Reel 68948, frame 324	Madryn Health Partners, LP	Madryn Fund Administration, LLC	Security Interest
Sep 23, 2024 Reel 69019, frame 142	Bigfoot Biomedical, Inc.	Madryn Health Partners, LP	Security Interest
Sep 23, 2024 Reel 69019, frame 188	Madryn Health Partners, LP	Madryn Fund Administration, LLC	Security Interest
Sep 24, 2024 Reel 69030, frame 104	Madryn Health Partners, LP	Madryn Fund Administration, LLC	Security Interest
Sep 24, 2024 Reel 69030, frame 296	Bigfoot Biomedical, Inc.	Madryn Health Partners, LP	Security Interest
Sep 30, 2024 Reel 69073, frame 912	Bigfoot Biomedical, Inc.	Madryn Health Partners, LP	Security Interest
Sep 30, 2024 Reel 69074, frame 1	Madryn Health Partners, LP	Madryn Fund Administration, LLC	Security Interest
Jan 10, 2025 Reel 69870, frame 456	Bigfoot Biomedical, Inc.	Madryn Health Partners, LP	Security Interest
Jan 10, 2025 Reel 69870, frame 519	Madryn Health Partners, LP	Madryn Fund Administration, LLC	Security 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

Oct 2035

Term ends Oct 30, 2035. Maintenance fees still fall due before then

Note

The 184 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us

Citations

later US patents cite this one

That is top 5% of utility patents granted in 2020 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.

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