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System for Thermally Processing Lumpy Solid Material

US 9,121,640 In force
OverviewFamilyAssignmentsSources & methods

Term ends Aug 19, 2032 · High confidence

Filed Aug 12, 2011 as application 13/201,314 · Granted Sep 1, 2015
Base term plus 885 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2010 2032
Clock starts
Mar 18, 2010
Term ends
Aug 19, 2032
Granted
Sep 1, 2015
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
885
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.
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 runs 885 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 Mar 18, 2010, when application PCT/EP2010/053562, the earliest non-provisional in its chain, was filed (this one was filed Aug 12, 2011)Mar 18, 2030High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+885 days, USPTO patent term adjustment recordAug 19, 2032High 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 orderAug 19, 2032High confidence

This family

US 9,121,640this patent
Aug 2032
Aug 2032
1 of 2 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
Aug 12, 2011
Reel 26743, frame 438
Ruther, Thomas; Klegraf, Tobias; Peters, AlexanderThyssenkrupp Polysius AGAssignment of Assignor's Interest
Jul 21, 2015
Reel 36140, frame 199
Thyssenkrupp Polysius AGThyssenkrupp Resource Technologies GmbHChange of Name
Jul 21, 2015
Reel 36140, frame 246
Thyssenkrupp Resource Technologies GmbHThyssenkrupp Industrial Solutions GmbHChange of Name
Jul 21, 2015
Reel 36140, frame 541
Thyssenkrupp Industrial Solutions GmbHThyssenkrupp Industrial Solutions AGChange of Name
Feb 19, 2025
Reel 70257, frame 250
Thyssenkrupp Industrial Solutions AGThyssenkrupp Polysius GmbHChange 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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