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Base Substrate Which Prevents Burrs Generated During the Cutting Process and Method for Manufacturing the Same

US 9,913,381 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed Mar 6, 2026 on the fee record · High confidence

Second maintenance fee unpaid; grace period ended.

Filed Aug 15, 2014 as application 14/460,587 · Granted Mar 6, 2018
Base term, 20 years from filing, plus 377 days of patent term adjustment (USPTO delay)
Today
Lapsed Mar 6, 2026
2014 2035
Clock starts
Aug 15, 2014
No longer in force
Mar 6, 2026
Granted
Mar 6, 2018
Term would have run to
Aug 27, 2035
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
377
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 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.
55
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 27, 2035: its 20-year base term plus 377 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 Aug 15, 2014, when this application, 14/460,587, was filedAug 15, 2034High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+377 days, USPTO patent term adjustment recordAug 27, 2035High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 3 maintenance fees paidlapsed Mar 6, 2026High confidence
Computed term endThe steps above, in orderMar 6, 2026High confidence

This family

US 8,921,879In force
Mar 2031
Mar 2031
US 9,287,243Lapsed on the fee record
Mar 2024
Mar 2024
US 9,306,142Lapsed on the fee record
Apr 2024
Apr 2024
Application 14/232,593Abandoned
not computed
not computed
Application 14/343,674Abandoned
not computed
not computed
US 9,281,452Lapsed on the fee record
Mar 2024
Mar 2024
US 9,018,651Lapsed on the fee record
Apr 2023
Apr 2023
US 9,913,381this patent
Mar 2026
Mar 2026
8 of 55 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
Sep 8, 2014
Reel 33687, frame 685
Ahn, Bum Mo; Park, Seung Ho; Yun, Kyoung JaPoint Engineering Co., Ltd.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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