Variable Displacement Container Base

US 11,912,459 In force

Overview Sources & methods

Term ends Jan 18, 2035 · High confidence

Computed 20-year base term

Held by CO2PAC Limited

Filed Jan 14, 2021 as application 17/260,475 · Granted Feb 27, 2024

Base term plus 369 days of patent term adjustment (USPTO delay)

Today

20 years from filing

Term ends Jan 18, 2035

2014 2035

Clock starts
Jan 14, 2014

Term ends
Jan 18, 2035

Granted
Feb 27, 2024

base term patent term adjustment 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

369

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 2

Maintenance fees paid

Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. 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 Jan 14, 2014, when the earliest non-provisional application in its chain was filed (this one was filed Jan 14, 2021)	Jan 14, 2034	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	+369 days, USPTO patent term adjustment record	Jan 18, 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	0 of 2 maintenance fees paid	In force	High confidence
Computed term end	The steps above, in order	Jan 18, 2035	High 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.

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

Variable Displacement Container Base

Term ends Jan 18, 2035 · High confidence

20-year base term ends Jan 14, 2034

How we calculated this date

Sources