Systems and Methods for Manipulating and Managing Computer Archive Files

US 10,229,130 Term ended

Overview Sources & methods

Term ended Mar 9, 2021 · Low confidence

Computed 20-year base term

Held by Pkware, Inc.

Filed Dec 26, 2017 as application 15/854,488 · Granted Mar 12, 2019

Base term, 20 years from filing

Today

20 years from filing

Term ended Mar 9, 2021

2001 2026

Clock starts
Mar 9, 2001

Term ended
Mar 9, 2021

Granted
Mar 12, 2019

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

None

Term adjustment

No prosecution delay on this record.

No effect

Terminal disclaimer

Resolved from the filed document, referencing US 6,879,988, US 7,890,465, US 9,886,444, to Mar 9, 2021. The term already ends on or before that date, so the cap shortened nothing.

1 of 1

Maintenance fees paid

One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it 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 Mar 9, 2001, when the earliest non-provisional application in its chain was filed (this one was filed Dec 26, 2017); a parent in its chain could not be resolved (the next row)	Mar 9, 2021	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	None on file	no change	High confidence
Terminal disclaimer cap	Disclaimer resolved from the filed document (refs US 6,879,988, US 7,890,465, US 9,886,444)	resolves to Mar 9, 2021, no earlier than this term, so no change	High confidence
Patent term extension	None on file	no change	High confidence
Fee events	1 of 1 maintenance fees paid	term ended	High confidence
Further caveats on record	The record names parents not resolved: 13005245, 11586866, 10970897, 09803355	Low confidence overall	Low confidence
Computed term end	The steps above, in order	Mar 9, 2021	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.

Systems and Methods for Manipulating and Managing Computer Archive Files

Term ended Mar 9, 2021 · Low confidence

20-year base term ended Mar 9, 2021

How we calculated this date

Sources