Use of composition comprising exosome derived from adipose-derived stem cell as effective ingredient in ameliorating dermatitis

US 11,612,621 In force

Overview Sources & methods

Term ends Apr 16, 2040 · From the USPTO record

Computed 20-year base term

Named at grant Exocobio Inc. · find this owner

Filed Dec 26, 2019 as application 16/727,739 · Granted Mar 28, 2023

Base term plus 658 days of patent term adjustment (USPTO delay)

Today

20 years from filing

Term ends Apr 16, 2040

2018 2040

Clock starts
Jun 28, 2018

Term ends
Apr 16, 2040

Granted
Mar 28, 2023

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

658

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.

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 Jun 28, 2018, when the earliest non-provisional application in its chain was filed (this one was filed Dec 26, 2019); a parent in its chain could not be resolved (the next row)	Jun 28, 2038	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	+658 days, USPTO patent term adjustment record	Apr 16, 2040	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	Apr 16, 2040	From the USPTO record

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.

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

Use of composition comprising exosome derived from adipose-derived stem cell as effective ingredient in ameliorating dermatitis

Term ends Apr 16, 2040 · From the USPTO record

20-year base term ends Jun 28, 2038

How we calculated this date

Sources