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Mass Spectrometry Method

US 8,871,525 Grace period ended
OverviewAssignmentsSources & methods

Term ends Jun 18, 2032 · Low confidence

Grace period ended Oct 28, 2026 · no payment on record as of the Nov 10, 2026 fee file · lapse expected

Filed Sep 30, 2011 as application 13/250,758 · Granted Oct 28, 2014
Base term plus 262 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2011 2032
Clock starts
Sep 30, 2011
Term ends
Jun 18, 2032
Granted
Oct 28, 2014
base term patent term adjustment 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
262
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 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 262 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are paid so far. Confidence: Low: the grace period for its third maintenance fee ended Oct 28, 2026 with no payment on record. 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 Sep 30, 2011, when this application, 13/250,758, was filedSep 30, 2031High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+262 days, USPTO patent term adjustment recordJun 18, 2032High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee eventsThe grace period ended with no payment on record in the fee filegrace period ended Oct 28, 2026Low confidence
Computed term endThe steps above, in orderJun 18, 2032Low 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
Apr 18, 2012
Reel 28068, frame 465
Martin, Kevin V.; Herrgard, Markus; Reeves, KathleenSynthetic Genomics, Inc.Assignment of Assignor's Interest
Mar 20, 2019
Reel 48655, frame 406
Synthetic Genomics, Inc.Oxford Finance LLCSecurity Interest
Nov 10, 2020
Reel 54372, frame 822
Oxford Finance LLCSynthetic Genomics, Inc.; Genovia Bio, LLC; Green Resources, LLC; Sgi-Dna, Inc.; Synthetic Genomics Vaccines, Inc.Release of Security Interest
Nov 10, 2020
reel/frame not recorded
Oxford Finance LLCSynthetic Genomics, Inc.Release of Security Interest
Nov 10, 2020
reel/frame not recorded
Oxford Finance LLCGenovia Bio, LLCRelease of Security Interest
Nov 10, 2020
reel/frame not recorded
Oxford Finance LLCGreen Resources, LLCRelease of Security Interest
Nov 10, 2020
reel/frame not recorded
Oxford Finance LLCSgi-Dna, Inc.Release of Security Interest
Nov 10, 2020
reel/frame not recorded
Oxford Finance LLCSynthetic Genomics Vaccines, Inc.Release of Security Interest
Apr 7, 2022
Reel 59631, frame 684
Synthetic Genomics, Inc.Viridos, Inc.Change of Name

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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