Curable Polysiloxane Compositions and Slippery Materials and Coatings and Articles Made Therefrom

US 10,961,413 Lapsed on the fee record

Overview Sources & methods

Lapsed Mar 30, 2025 on the fee record · Medium confidence

Computed 20-year base term

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

First maintenance fee unpaid; grace period ended.

Held by Adaptive Surface Technologies, Inc.

Filed Apr 23, 2018 as application 15/959,835 · Granted Mar 30, 2021

Base term, 20 years from filing, plus 79 days of patent term adjustment (USPTO delay)

Today

Lapsed Mar 30, 2025

2017 2037

Clock starts
Apr 4, 2017

No longer in force
Mar 30, 2025

Granted
Mar 30, 2021

Term would have run to
Jun 22, 2037

base term patent term adjustment after the term ends 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

Days of term adjustment

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

None

Terminal disclaimer

No disclaimer on this record.

0 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.

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 4, 2017, when the earliest non-provisional application in its chain was filed (this one was filed Apr 23, 2018); a parent in its chain could not be resolved (the next row)	Apr 4, 2037	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	+79 days, USPTO patent term adjustment record	Jun 22, 2037	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	0 of 3 maintenance fees paid	lapsed Mar 30, 2025	High confidence
Computed term end	The steps above, in order	Mar 30, 2025	Medium confidence

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.

Not on this page: the patent's family, its recorded assignments and its citation count. USPTO's assignment records, linked above, list every recorded assignment.

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.

Curable Polysiloxane Compositions and Slippery Materials and Coatings and Articles Made Therefrom

Lapsed Mar 30, 2025 on the fee record · Medium confidence

20-year base term ends Apr 4, 2037

How we calculated this date

Sources