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Multi Charged Particle Beam Writing Apparatus and Multi Charged Particle Beam Writing Method

US 8,710,467 In force
OverviewFamilyAssignmentsSources & methods

Term ends Aug 29, 2032 · High confidence

Filed Aug 29, 2012 as application 13/597,699 · Granted Apr 29, 2014
Base term, 20 years from filing
Today
20 years from filing
2012 2032
Clock starts
Aug 29, 2012
Term ends
Aug 29, 2032
Granted
Apr 29, 2014
base term 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
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
3 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.
3
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. All three maintenance fees are recorded paid; no more fees are due. 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 Aug 29, 2012, when this application, 13/597,699, was filedAug 29, 2032High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderAug 29, 2032High confidence

This family

US 8,710,467this patent
Aug 2032
Aug 2032
US 8,907,306In force
Aug 2032
Aug 2032
US 9,343,268In force
Aug 2032
Aug 2032
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 29, 2012
Reel 28870, frame 257
Yoshikawa, Ryoichi; Ogasawara, MunehiroNuflare Technology, Inc.Assignment 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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