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US

Distributed Hot-Spare Storage in a Storage Cluster

US 8,479,037 Term ended
OverviewFamilyAssignmentsSources & methods

Also listed on American Megatrends, Inc., an earlier holder on the record. The recorded assignments below show how it moved.

Term ended Oct 20, 2026 · High confidence

Filed Aug 29, 2011 as application 13/220,305 · Granted Jul 2, 2013
Base term, 20 years from filing
Today
20 years from filing
Term ended Oct 20, 2026
2006 2026
Clock starts
Oct 20, 2006
Term ended
Oct 20, 2026
Granted
Jul 2, 2013
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.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,010,829, to Oct 20, 2026. 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.
2
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

This patent's term is its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. All three maintenance fees were paid, so no fee lapse ended it. Confidence: High. from the record

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.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Oct 20, 2006, when application 11/551,311, the earliest non-provisional in its chain, was filed (this one was filed Aug 29, 2011)Oct 20, 2026High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 8,010,829)resolves to Oct 20, 2026, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidterm endedHigh confidence
Computed term endThe steps above, in orderOct 20, 2026High confidence

This family

US 8,010,829In force
May 2027
May 2027
US 8,479,037this patent
Oct 2026
Oct 2026
The applications whose file history this site holds. The family may have others.

Assignments

Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
RecordedAssignorAssigneeConveyance
Mar 4, 2013
Reel 29911, frame 737
Chatterjee, Paresh; Narayanan, Ajit; Mahalingam, Anandh; Subramanian, SrikumarAmerican Megatrends, Inc.Assignment of Assignor's Interest
Jun 22, 2020
Reel 53007, frame 233
American Megatrends, Inc.American Megatrends International, LLCChange of Name
Jun 22, 2020
Reel 53007, frame 151
American Megatrends International, LLC,Amzetta Technologies, LLC,Assignment of Assignor's Interest

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.

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