Process and intermediate compounds useful in the preparation of statins

US 8,519,164 Lapsed on the fee record

Overview Sources & methods

Lapsed Aug 27, 2017 on the fee record · From the USPTO record

Computed 20-year base term

First maintenance fee unpaid; grace period ended.

Named at grant Redx Pharma Limited · find this owner

Filed Aug 30, 2012 as application 13/599,606 · Granted Aug 27, 2013

Base term, 20 years from filing

Today

Lapsed Aug 27, 2017

2005 2026

Clock starts
Nov 28, 2005

No longer in force
Aug 27, 2017

Granted
Aug 27, 2013

Term would have run to
Nov 28, 2025

base term after the term ends 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.

0 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 Nov 28, 2005, when the earliest non-provisional application in its chain was filed (this one was filed Aug 30, 2012); a parent in its chain could not be resolved (the next row)	Nov 28, 2025	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	No term adjustment record on a grant after 2005, so none is added	no change	Medium 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	0 of 3 maintenance fees paid	lapsed Aug 27, 2017	High confidence
Computed term end	The steps above, in order	Aug 27, 2017	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.

Process and intermediate compounds useful in the preparation of statins

Lapsed Aug 27, 2017 on the fee record · From the USPTO record

20-year base term ended Nov 28, 2025

How we calculated this date

Sources