Hepatitis C Virus Non-Structural NS3/4A Fusion Gene

US 7,439,347 Lapsed on the fee record

Lapsed Oct 21, 2020 on the fee record · Medium confidence

Computed 20-year base term

Why Medium: The disclaimer's references carry disclaimers of their own not yet read (US 6,858,590, US 6,960,569), so the cap could be lower.

Third maintenance fee unpaid; grace period ended.

Held by Tripep AB

Filed Oct 13, 2005 as application 11/249,893 · Granted Oct 21, 2008

Base term, 20 years from filing, plus 308 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer

Today

Lapsed Oct 21, 2020

2001 2026

Clock starts
Aug 15, 2001

No longer in force
Oct 21, 2020

Granted
Oct 21, 2008

Term would have run to
Nov 1, 2021

base term patent term adjustment after the term ends 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

308

Days of term adjustment

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

Capped

Terminal disclaimer

Resolved from the filed document, referencing US 6,858,590, US 6,960,569.

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 Aug 15, 2001, when the earliest non-provisional application in its chain was filed (this one was filed Oct 13, 2005)	Aug 15, 2021	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	+308 days, USPTO patent term adjustment record	Jun 19, 2022	High confidence
Terminal disclaimer cap	Disclaimer resolved from the filed document (refs US 6,858,590, US 6,960,569)	capped to Nov 1, 2021	Medium confidence
Patent term extension	None on file	no change	High confidence
Fee events	2 of 3 maintenance fees paid	lapsed Oct 21, 2020	High confidence
Computed term end	The steps above, in order	Oct 21, 2020	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.

Hepatitis C Virus Non-Structural NS3/4A Fusion Gene

Lapsed Oct 21, 2020 on the fee record · Medium confidence

20-year base term ended Aug 15, 2021

How we calculated this date

Sources