LAN switch with rapid fault recovery

US 7,593,319 Surrendered on reissue

Overview Sources & methods

Surrendered on reissue Nov 20, 2012 · From the USPTO record

Computed 20-year base term

Surrendered on reissue Nov 20, 2012 · its term and maintenance fees continue in US RE43,811.

Named at grant Garrettcom, Inc. · find this owner

Filed Oct 3, 2003 as application 10/678,977 · Granted Sep 22, 2009

Base term, 20 years from filing, plus 898 days of patent term adjustment (USPTO delay)

Today

Surrendered Nov 20, 2012

2003 2026

Clock starts
Oct 3, 2003

No longer in force
Nov 20, 2012

Granted
Sep 22, 2009

Term would have run to
Mar 19, 2026

base term patent term adjustment after the term ends 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

898

Days of term adjustment

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

None

Terminal disclaimer

No disclaimer on this record.

Not on record

Maintenance fees

USPTO's record of this patent carries no fee events. A gap in the record, not evidence of lapse.

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 Oct 3, 2003, when this application, 10/678,977, was filed	Oct 3, 2023	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	+898 days, USPTO patent term adjustment record	Mar 19, 2026	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	No fee events in USPTO's record of this patent. A gap in the record, not evidence of lapse	no change	Medium confidence
Reissue	US RE43,811 issued Nov 20, 2012, and this patent's term continues in it (35 U.S.C. 251, 252)	surrendered Nov 20, 2012	High confidence
Surrendered on reissue	The steps above, in order	Nov 20, 2012	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.

LAN switch with rapid fault recovery

Surrendered on reissue Nov 20, 2012 · From the USPTO record

20-year base term ended Oct 3, 2023

How we calculated this date

Sources