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Compact Silicon Qubit Cell with Embedded Readout

US 12,645,969 In force
OverviewFamilyAssignmentsSources & methods

Term ends Jun 16, 2043 · High confidence

Filed Aug 4, 2023 as application 18/275,998 · Granted Jun 2, 2026
Base term plus 469 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2022 2043
Clock starts
Mar 4, 2022
Term ends
Jun 16, 2043
Granted
Jun 2, 2026
base term patent term adjustment 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
469
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
0 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.
12
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 469 days past its 20-year base term on prosecution delay. 0 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 4, 2022, when application PCT/EP2022/055531, the earliest non-provisional in its chain, was filed (this one was filed Aug 4, 2023)Mar 4, 2042High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+469 days, USPTO patent term adjustment recordJun 16, 2043High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events0 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderJun 16, 2043High confidence

This family

Application 19/581,036Pending
not computed
not computed
US 12,645,969this patent
Jun 2043
Jun 2043
Application 18/842,379Pending
not computed
not computed
Application 18/866,590Pending
not computed
not computed
Application 19/156,388Pending
not computed
not computed
Application 19/480,022Pending
not computed
not computed
6 of 12 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
Dec 7, 2023
Reel 65789, frame 444
Gonzalez-zalba, Miguel FernandoQuantum Motion Technologies LimitedAssignment 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.

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