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US

3D Microscope And Methods Of Measuring Patterned Substrates

US 9,389,408 In force
OverviewFamilyAssignmentsSources & methods

Also listed on Zeta Instruments, Inc., an earlier holder on the record. The recorded assignments below show how it moved.

Term ends Aug 6, 2034 · High confidence

Filed Jun 29, 2011 as application 13/172,686 · Granted Jul 12, 2016
Base term plus 1134 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2011 2034
Clock starts
Jun 29, 2011
Term ends
Aug 6, 2034
Granted
Jul 12, 2016
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
1,134
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.
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 runs 1134 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 Jun 29, 2011, when this application, 13/172,686, was filedJun 29, 2031High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+1134 days, USPTO patent term adjustment recordAug 6, 2034High 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 6, 2034High confidence

This family

US 9,389,408this patent
Aug 2034
Aug 2034
Application PCT/US2011/044045PCT application
no patent term
no patent term
US 10,209,501In force
Dec 2031
Dec 2031
Application 15/150,411Abandoned
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 29, 2011
Reel 26524, frame 238
Hou, Zhen; Xu, James Jianguo; Lee, Ken Kinsun; Stainton, James Nelson; Nguyen, Hung Phi; Kudinar, Rusmin; Soetarman, RonnyZeta Instruments, Inc.Assignment of Assignor's Interest
Aug 1, 2018
Reel 46530, frame 323
Zeta Instruments, Inc.Kla-Tencor CorporationAssignment 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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