Sandwich Electrode Design Having Relatively Thin Current Collectors

US 7,531,274 Term ended

Overview Sources & methods

Term ended Nov 14, 2022 · Low confidence

Computed 20-year base term

Held by Greatbatch Ltd.

Filed Aug 28, 2006 as application 11/467,664 · Granted May 12, 2009

Base term plus 471 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer

Today

20 years from filing

Term ended Nov 14, 2022

2003 2026

Clock starts
Jan 17, 2003

Term ended
Nov 14, 2022

Granted
May 12, 2009

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

471

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 6,767,670, US 7,018,743.

3 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 Jan 17, 2003, when the earliest non-provisional application in its chain was filed (this one was filed Aug 28, 2006); a parent in its chain could not be resolved (the next row)	Jan 17, 2023	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	+471 days, USPTO patent term adjustment record	May 2, 2024	High confidence
Terminal disclaimer cap	Disclaimer resolved from the filed document (refs US 6,767,670, US 7,018,743)	capped to Nov 14, 2022	High confidence
Patent term extension	None on file	no change	High confidence
Fee events	3 of 3 maintenance fees paid	term ended	High confidence
Further caveats on record	The record names parents not resolved: 10346998	Low confidence overall	Low confidence
Computed term end	The steps above, in order	Nov 14, 2022	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.

Sandwich Electrode Design Having Relatively Thin Current Collectors

Term ended Nov 14, 2022 · Low confidence

20-year base term ended Jan 17, 2023

How we calculated this date

Sources