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ANTI-PD1 Antibodies and Their Use as Therapeutics and Diagnostics

US 9,988,450 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed Jun 5, 2026 on the fee record · Low confidence

Second maintenance fee unpaid; grace period ended.

Filed Nov 2, 2017 as application 15/802,093 · Granted Jun 5, 2018
Base term, 20 years from filing
Today
Lapsed Jun 5, 2026
2013 2033
Clock starts
Sep 13, 2013
No longer in force
Jun 5, 2026
Granted
Jun 5, 2018
Term would have run to
Sep 13, 2033
base term 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
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,735,553, US 9,217,034, US 9,834,606, to Sep 13, 2033. The term already ends on or before that date, so the cap shortened nothing.
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.
11
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 Sep 13, 2033: its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 Sep 13, 2013, when application PCT/CN2013/083467, the earliest non-provisional in its chain, was filed (this one was filed Nov 2, 2017); a parent in its chain could not be resolved (the next row)Sep 13, 2033High 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 resolved from the filed document (refs US 8,735,553, US 9,217,034, US 9,834,606)resolves to Sep 13, 2033, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 3 maintenance fees paidlapsed Jun 5, 2026High confidence
Further caveats on recordThe record names parents not resolved: 14736966, 14076214, 14076214Low confidence overallLow confidence
Computed term endThe steps above, in orderJun 5, 2026Low confidence

This family

US 8,735,553In force
Sep 2033
Sep 2033
US 9,217,034In force
Dec 2033
Dec 2033
US 9,834,606Lapsed on the fee record
Dec 2025
Dec 2025
US 9,988,450this patent
Jun 2026
Jun 2026
US 10,519,235In force
Sep 2033
Sep 2033
US 11,673,951In force
Sep 2033
Sep 2033
US 11,186,637Lapsed on the fee record
Nov 2025
Nov 2025
Application 17/513,217Abandoned
not computed
not computed
8 of 11 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
Nov 2, 2017
Reel 44022, frame 481
Li, Kang; Zhang, Tong; Song, Jing; Xu, Lanlan; Liu, Qi; Peng, HaoBeiGene, Ltd.Assignment of Assignor's Interest
Dec 11, 2017
Reel 44353, frame 160
BeiGene, Ltd.BeiGene Switzerland GmbHAssignment of Assignor's Interest
Nov 4, 2021
Reel 58267, frame 358
BeiGene Switzerland GmbHBeiGene Switzerland GmbHChange of Assignee Address
Sep 23, 2025
Reel 72872, frame 76
BeiGene Switzerland GmbHBeone Medicines I GmbHChange 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.

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