Lapsed Sep 18, 2026 on the fee record · Medium confidence

Computed 20-year base term

Why Medium: The fee record shows no payment for this window, and USPTO's status still reads "Patented Case".

Second maintenance fee unpaid; grace period ended. The USPTO has not yet posted the lapse.

Held by Everspin Technologies, Inc.

Filed Oct 9, 2017 as application 15/727,905 · Granted Sep 18, 2018

Base term, 20 years from filing

Today

Lapsed Sep 18, 2026

2016 2036

Clock starts
Feb 2, 2016

No longer in force
Sep 18, 2026

Granted
Sep 18, 2018

Term would have run to
Feb 2, 2036

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.

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.

Its term would have run to Feb 2, 2036: its 20-year base term, with no adjustment for prosecution delay. 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 Feb 2, 2016, when application 15/013,950, the earliest non-provisional in its chain, was filed (this one was filed Oct 9, 2017)	Feb 2, 2036	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	The fee record shows no payment for this window, and USPTO's status still reads "Patented Case"	lapsed Sep 18, 2026	Medium confidence
Computed term end	The steps above, in order	Sep 18, 2026	Medium confidence

This family

US 9,793,470	In force Feb 2036	Feb 2036
US 10,079,339	this patent Sep 2026	Sep 2026
US 10,461,250	In force Feb 2036	Feb 2036
US 10,658,576	In force Feb 2036	Feb 2036
US 11,189,785	In force Feb 2036	Feb 2036
US 11,778,919	In force Jul 2036	Jul 2036
US 12,369,495	In force Feb 2036	Feb 2036

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
Aug 3, 2018 Reel 46551, frame 90	Deshpande, Sarin A.; Nagel, Kerry Joseph; Mudivarthi, Chaitanya; Aggarwal, Sanjeev	Everspin Technologies, Inc.	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.

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Alerts on its grants, lapses and transfers.

Citations

later US patents cite this one

That is above the median of utility patents granted in 2018 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.

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