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Electrolytic Generation of Manganese (III) Ions in Strong Sulfuric Acid

US 9,534,306 In force
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Feb 5, 2019 (Barclays Bank PLC).

Term ends Sep 7, 2034 · High confidence

Filed Mar 12, 2013 as application 13/795,382 · Granted Jan 3, 2017
Base term plus 958 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2012 2034
Clock starts
Jan 23, 2012
Term ends
Sep 7, 2034
Granted
Jan 3, 2017
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
958
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.
10
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 runs 958 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are paid so far. 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 Jan 23, 2012, when application 13/356,004, the earliest non-provisional in its chain, was filed (this one was filed Mar 12, 2013)Jan 23, 2032High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+958 days, USPTO patent term adjustment recordSep 7, 2034High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderSep 7, 2034High confidence

This family

US 10,260,000In force
Jun 2033
Jun 2033
US 9,752,241In force
Sep 2035
Sep 2035
Application PCT/US2013/020115PCT application
no patent term
no patent term
US 9,534,306this patent
Sep 2034
Sep 2034
Application PCT/US2013/061860PCT application
no patent term
no patent term
Application PCT/US2014/021618PCT application
no patent term
no patent term
US 10,280,367In force
Mar 2034
Mar 2034
US 10,895,016In force
Jul 2033
Jul 2033
8 of 10 applications in this family shown, earliest filings first. 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 12, 2013
Reel 29971, frame 368
Pearson, Trevor; Clarke, Terence; Chapaneri, Roshan V.; Robinson, Craig; Hyslop, Alison; Singh, AmrikMacDermid Acumen, Inc.Assignment of Assignor's Interest
Jul 19, 2013
Reel 30831, frame 549
MacDermid Acumen, Inc.Credit Suisse AG, Cayman Islands Branch, as First Lien Collateral AgentFirst Lien Patent Security Agreement
Jul 19, 2013
Reel 30831, frame 675
MacDermid Acumen, Inc.Credit Suisse AG, Cayman Islands Branch, as Second Lien Collateral AgentSecond Lien Patent Security Agreement
Nov 1, 2013
Reel 31536, frame 778
Credit Suisse AG, Cayman Islands Branch, as First Lien Collateral AgentBarclays Bank PLC, as Successor Collateral AgentAssignment and Assumption of Security Interests at Reel/Frame Nos. 30831/0549, 30833/0660, 30831/0606, 30833/0700, and 30833/0727
Nov 1, 2013
Reel 31537, frame 94
Credit Suisse AG, Cayman Islands Branch, as Second Lien Collateral AgentMacDermid Acumen, Inc.Release of Security Interest in Patent Collateral at Reel/Frame No. 30831/0675
Feb 4, 2019
Reel 48232, frame 405
Barclays Bank PLC, as Collateral AgentMacDermid Acumen, Inc.Release of Security Interest
Feb 5, 2019
Reel 48260, frame 828
MacDermid Acumen, Inc.Barclays Bank PLC, as Collateral AgentSecurity Interest
Nov 17, 2022
Reel 61956, frame 643
Barclays Bank PLCCitibank, N.a.Assignment of Security Interest in Patent Collateral

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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