Delaying Initiation of Maintenance Process for Running VM by Delay Value Based on Random Number Function Seeded with Unique Id

US 8,468,525 In force

Overview Sources & methods

Term ends Feb 27, 2027 · High confidence

Computed 20-year base term

Held by Red Hat, Inc.

Filed Jan 23, 2012 as application 13/356,250 · Granted Jun 18, 2013

Base term, 20 years from filing

Today

20 years from filing

Term ends Feb 27, 2027

2007 2027

Clock starts
Feb 27, 2007

Term ends
Feb 27, 2027

Granted
Jun 18, 2013

base term 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.

No effect

Terminal disclaimer

Resolved from the filed document, referencing US 8,112,753, to Feb 27, 2027. The term already ends on or before that date, so the cap shortened nothing.

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 Feb 27, 2007, when the earliest non-provisional application in its chain was filed (this one was filed Jan 23, 2012)	Feb 27, 2027	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	Disclaimer resolved from the filed document (refs US 8,112,753)	resolves to Feb 27, 2027, no earlier than this term, so no change	High confidence
Patent term extension	None on file	no change	High confidence
Fee events	3 of 3 maintenance fees paid	In force	High confidence
Computed term end	The steps above, in order	Feb 27, 2027	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.

In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.

Delaying Initiation of Maintenance Process for Running VM by Delay Value Based on Random Number Function Seeded with Unique Id

Term ends Feb 27, 2027 · High confidence

20-year base term ends Feb 27, 2027

How we calculated this date

Sources