Multi-Purpose Razor Blade Tool

US 6,598,301 Term ended

Overview Sources & methods

Term ended May 31, 2021 · High confidence

Computed 20-year base term

Held by Accutec, Inc.

Filed May 31, 2001 as application 09/867,765 · Granted Jul 29, 2003

Base term, 20 years from filing

Today

20 years from filing

Term ended May 31, 2021

2001 2026

Clock starts
May 31, 2001

Term ended
May 31, 2021

Granted
Jul 29, 2003

base term 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

None

Term adjustment

No prosecution delay on this record.

None

Terminal disclaimer

No disclaimer on this record.

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 May 31, 2001, when this application, 09/867,765, was filed	May 31, 2021	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	None on file	no change	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	3 of 3 maintenance fees paid	term ended	High confidence
Computed term end	The steps above, in order	May 31, 2021	High 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.

Multi-Purpose Razor Blade Tool

Term ended May 31, 2021 · High confidence

20-year base term ended May 31, 2021

How we calculated this date

Sources