Private dialing plan for voice on a packet-based network

US 7,643,498 Lapsed on the fee record

Overview Sources & methods

Lapsed Jan 5, 2018 on the fee record · From the USPTO record

Computed 20-year base term

Second maintenance fee unpaid; grace period ended.

Named at grant EdgeAccess, Inc. · find this owner

Filed Feb 16, 2006 as application 11/355,079 · Granted Jan 5, 2010

Base term, 20 years from filing, plus 472 days of patent term adjustment (USPTO delay)

Today

Lapsed Jan 5, 2018

2000 2026

Clock starts
May 19, 2000

No longer in force
Jan 5, 2018

Granted
Jan 5, 2010

Term would have run to
Sep 3, 2021

base term patent term adjustment 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

472

Days of term adjustment

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

None

Terminal disclaimer

No disclaimer on this record.

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 19, 2000, when the earliest non-provisional application in its chain was filed (this one was filed Feb 16, 2006)	May 19, 2020	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	+472 days, USPTO patent term adjustment record	Sep 3, 2021	High confidence
Terminal disclaimer cap	None on record	no cap applied	High confidence
Patent term extension	None on file	no change	High confidence
Fee events	1 of 2 maintenance fees paid	lapsed Jan 5, 2018	High confidence
Computed term end	The steps above, in order	Jan 5, 2018	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.

Private dialing plan for voice on a packet-based network

Lapsed Jan 5, 2018 on the fee record · From the USPTO record

20-year base term ended May 19, 2020

How we calculated this date

Sources