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US 8,706,494 In force
OverviewAssignmentsSources & methods

Also listed on Aeromee Development L.L.C., an earlier holder on the record. The recorded assignments below show how it moved.

Term ends Jan 3, 2027 · High confidence

Filed Aug 29, 2011 as application 13/220,488 · Granted Apr 22, 2014
Base term plus 169 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2006 2027
Clock starts
Jul 18, 2006
Term ends
Jan 3, 2027
Granted
Apr 22, 2014
base term patent term adjustment 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
169
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,032,378, to Jan 3, 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.

This patent's term runs 169 days past its 20-year base term on 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 are recorded paid; no more fees are due. 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 Jul 18, 2006, when application 11/458,150, the earliest non-provisional in its chain, was filed (this one was filed Aug 29, 2011)Jul 18, 2026High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+169 days, USPTO patent term adjustment recordJan 3, 2027High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 8,032,378)resolves to Jan 3, 2027, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderJan 3, 2027High confidence

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
Jan 12, 2012
Reel 27520, frame 922
Stephens, James H., JR.Morphism LLCAssignment of Assignor's Interest
Feb 2, 2012
Reel 27640, frame 538
Morphism, LLCAeromee Development L.L.C.Assignment of Assignor's Interest
Dec 29, 2015
Reel 37374, frame 237
Aeromee Development L.L.C.Chemtron Research LLCMerger

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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