Process for the Production of Nano-Fibrillar Cellulose Gels

US 8,871,056 Grace period ended

Overview Sources & methods

Term ends no later than May 15, 2030 · Low confidence

Computed 20-year base term

Grace period ended Oct 28, 2026 · no payment on record as of the Nov 10, 2026 fee file · lapse expected

Held by Omya-Holding AG

Filed Oct 14, 2011 as application 13/138,646 · Granted Oct 28, 2014

Base term plus 46 days of patent term adjustment (USPTO delay)

Today

20 years from filing

Ends no later than May 15, 2030

2010 2030

Clock starts
Mar 30, 2010

Ends no later than
May 15, 2030

Granted
Oct 28, 2014

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

Days of term adjustment

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

Unresolved

Terminal disclaimer

On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.

2 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 Mar 30, 2010, when the earliest non-provisional application in its chain was filed (this one was filed Oct 14, 2011)	Mar 30, 2030	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	+46 days, USPTO patent term adjustment record	May 15, 2030	High confidence
Terminal disclaimer cap	Disclaimer on file (approved), reference document not resolved	no cap applied, and none guessed	Medium confidence
Patent term extension	None on file	no change	High confidence
Fee events	The grace period ended with no payment on record in the fee file	grace period ended Oct 28, 2026	Low confidence
Computed term end	The steps above, in order	no later than May 15, 2030	Low 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

This computed term ends no later than the date shown; an unresolved terminal disclaimer may end it earlier. 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.

Process for the Production of Nano-Fibrillar Cellulose Gels

Term ends no later than May 15, 2030 · Low confidence

20-year base term ends Mar 30, 2030

How we calculated this date

Sources