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3D Cell Washer

US 12,584,474 In force, term unresolved
OverviewFamilyAssignmentsSources & methods

Term ends no later than Mar 5, 2038 · Low confidence

In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.

Filed Apr 11, 2024 as application 18/633,226 · Granted Mar 24, 2026
Base term, 20 years from filing
Today
20 years from filing
2018 2038
Clock starts
Mar 5, 2018
Ends no later than
Mar 5, 2038
Granted
Mar 24, 2026
base term 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
None
Term adjustment
No prosecution delay on this record.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
0 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
4
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 is its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. 0 of 2 maintenance fees are paid so far. Confidence: Low. 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 5, 2018, when application 15/911,865, the earliest non-provisional in its chain, was filed (this one was filed Apr 11, 2024); a parent in its chain could not be resolved (the next row)Mar 5, 2038High confidence
Continuity chainA parent in the chain could not be resolveddated from this application's own claimMedium confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capDisclaimer on file (approved), reference document not resolvedno cap applied, and none guessedMedium confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events0 of 2 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderno later than Mar 5, 2038Low confidence

This family

US 10,961,997In force
Aug 2038
Aug 2038
US 11,982,268In force
Aug 2038
Aug 2038
US 12,584,474this patent
no later than Mar 2038
no later than Mar 2038
Application 19/551,533Pending
not computed
not computed
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
Jun 11, 2024
Reel 67688, frame 390
Many, Christopher; Larson, Brad; Smith, Byron; Struhammer, BrianBiotek Instruments, Inc.Assignment of Assignor's Interest
Jun 11, 2024
Reel 67690, frame 401
Biotek Instruments LLCAgilent Technologies, Inc.Assignment of Assignor's Interest
Jun 11, 2024
Reel 67697, frame 361
Biotek Instruments, Inc.Biotek Instruments LLCChange 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