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US

Engineered Fuel Feed Stock

US 8,444,721 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed May 21, 2025 on the fee record · High confidence

Third maintenance fee unpaid; grace period ended.

Filed Dec 22, 2009 as application 12/644,974 · Granted May 21, 2013
Base term, 20 years from filing, plus 381 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Lapsed May 21, 2025
2009 2029
Clock starts
Jun 25, 2009
No longer in force
May 21, 2025
Granted
May 21, 2013
Term would have run to
Jun 25, 2029
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
381
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 8,192,512.
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.
17
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

Its term would have run to Jun 25, 2029: its 20-year base term plus 381 days of term adjustment for prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 Jun 25, 2009, when application 12/492,096, the earliest non-provisional in its chain, was filed (this one was filed Dec 22, 2009)Jun 25, 2029High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+381 days, USPTO patent term adjustment recordJul 11, 2030High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 8,192,512)capped to Jun 25, 2029High confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidlapsed May 21, 2025High confidence
Computed term endThe steps above, in orderMay 21, 2025High confidence

This family

Application 12/492,096Abandoned
not computed
not computed
US 8,444,721this patent
May 2025
May 2025
Application PCT/US2010/061228PCT application
no patent term
no patent term
US 8,192,512Lapsed on the fee record
Jun 2024
Jun 2024
US 8,906,119In force
Jun 2029
Jun 2029
US 8,157,875Lapsed on the fee record
Apr 2024
Apr 2024
US 8,192,513Lapsed on the fee record
Jun 2024
Jun 2024
US 8,157,874Lapsed on the fee record
Apr 2024
Apr 2024
8 of 17 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
May 19, 2010
Reel 24407, frame 988
Bai, DingrongCasella Waste Systems, Inc.Assignment of Assignor's Interest
Feb 9, 2011
Reel 25774, frame 481
Casella Waste Systems, Inc.FCR, LLCAssignment of Assignor's Interest
Mar 3, 2011
Reel 25897, frame 770
FCR, LLCAres Capital Corporation, As Collateral AgentPatent Security Agreement
May 24, 2011
Reel 26332, frame 365
FCR, LLCRe Community Holdings II, Inc.Assignment of Assignor's Interest
Jan 3, 2012
Reel 27469, frame 907
Ares Capital CorporationFCR, LLCRelease of Security Interest
Feb 22, 2012
Reel 27747, frame 451
Re Community Holdings II, Inc.Re Community Energry, LLCTransfer Agreement
Mar 12, 2012
Reel 27898, frame 32
Re Community Holdings II, Inc.Re Community Energy, LLCCorrective Assignment to Correct the Assignee from --Re Community Energy, Llc" Previously Recorded on Reel 027747 Frame 0451. Assignor(S) Hereby Confirms the Transfer Agreement.
Jun 26, 2014
Reel 33245, frame 964
Accordant Energy, LLCKeeneland Capital, LLCSecurity Interest
Jul 10, 2014
Reel 33300, frame 534
Accordant Energy, LLCKeeneland Capital, LLCCorrective Assignment to Correct the Patent No. Listed as 8,745,599 to 8,746,599 Previously Recorded on Reel 033245 Frame 0964. Assignor(S) Hereby Confirms the Security Agreement.
Oct 7, 2014
Reel 33905, frame 193
Accordant Energy, LLCSGP Land, LLCSecurity Interest
Feb 4, 2015
Reel 34886, frame 810
SGP Land, LLCAccordant Energy, LLCRelease of Security Interest
Feb 12, 2015
Reel 34990, frame 17
Keeneland Capital, LLCAccordant Energy, LLCRelease of Security Interest
Mar 24, 2016
Reel 38249, frame 862
MPH Energy LLCAccordant Energy, LLCChange of Name
Mar 24, 2016
Reel 38249, frame 875
Re Community Energy, LLCMPH Energy LLCChange of Name
Apr 20, 2017
Reel 42078, frame 395
Calabrese, Paula A.Casella Waste Systems, Inc.Assignment of Assignor's Interest
Nov 11, 2020
Reel 54389, frame 352
Accordant Energy, LLCRepower IP, LLCAssignment 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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