Polysaccharide Structure and Sequence Determination

US 7,455,979 Lapsed on the fee record

Overview Sources & methods

Lapsed Nov 25, 2016 on the fee record · Low confidence

Computed 20-year base term

Second maintenance fee unpaid; grace period ended.

Named at grant Procognia Ltd. · find this owner

Filed Apr 12, 2006 as application 11/403,507 · Granted Nov 25, 2008

Base term, 20 years from filing

Today

Lapsed Nov 25, 2016

2000 2026

Clock starts
May 4, 2000

No longer in force
Nov 25, 2016

Granted
Nov 25, 2008

Term would have run to
May 4, 2020

base term after the term ends fee events Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know

None

Term adjustment

No prosecution delay on this record.

Unresolved

Terminal disclaimer

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

1 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 May 4, 2000, when the earliest non-provisional application in its chain was filed (this one was filed Apr 12, 2006); a parent in its chain could not be resolved (the next row)	May 4, 2020	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	None on file	no change	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	1 of 2 maintenance fees paid	lapsed Nov 25, 2016	High confidence
Computed term end	The steps above, in order	Nov 25, 2016	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

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.

Polysaccharide Structure and Sequence Determination

Lapsed Nov 25, 2016 on the fee record · Low confidence

20-year base term ended May 4, 2020

How we calculated this date

Sources