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Apparatus for Mixing Chemicals Having a Rotor Body with Pins

US 7,384,184 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed Jun 10, 2020 on the fee record · High confidence

Third maintenance fee unpaid; grace period ended.

Filed Oct 27, 2005 as application 10/537,938 · Granted Jun 10, 2008
Base term, 20 years from filing, plus 246 days of patent term adjustment (USPTO delay)
Today
Lapsed Jun 10, 2020
2003 2026
Clock starts
Dec 8, 2003
No longer in force
Jun 10, 2020
Granted
Jun 10, 2008
Term would have run to
Aug 10, 2024
base term patent term adjustment 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
246
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.
42
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 Aug 10, 2024: its 20-year base term plus 246 days of term adjustment for prosecution delay. 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 Dec 8, 2003, when application PCT/SE2003/001906, the earliest non-provisional in its chain, was filed (this one was filed Oct 27, 2005)Dec 8, 2023High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+246 days, USPTO patent term adjustment recordAug 10, 2024High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidlapsed Jun 10, 2020High confidence
Computed term endThe steps above, in orderJun 10, 2020High confidence

This family

US 7,044,998Lapsed on the fee record
May 2010
May 2010
Application 10/491,122Abandoned
not computed
not computed
US 7,294,227Lapsed on the fee record
Nov 2015
Nov 2015
US 7,491,296Term ended
May 2024
May 2024
US 7,384,185Lapsed on the fee record
Jun 2020
Jun 2020
US 7,476,292Lapsed on the fee record
Jan 2017
Jan 2017
US 7,384,184this patent
Jun 2020
Jun 2020
US 7,691,235In force
Jan 2027
Jan 2027
8 of 42 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
Oct 27, 2005
Reel 16950, frame 797
Melander, Olof; Danielsson, Peter; Wikstrom, TomasMetso Paper, Inc.Assignment of Assignor's Interest
Mar 27, 2014
Reel 32551, frame 426
Metso Paper, Inc.Valmet Technologies, 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.

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited