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US

Acetate Salt of Buprenorphine and Methods for Preparing Buprenorphine

US 10,874,662 In force
OverviewFamilyAssignmentsSources & methods

Term ends Mar 9, 2036 · High confidence

Held by Noramco, LLC
Filed Jun 19, 2019 as application 16/446,397 · Granted Dec 29, 2020
Base term, 20 years from filing
Today
20 years from filing
2016 2036
Clock starts
Mar 9, 2016
Term ends
Mar 9, 2036
Granted
Dec 29, 2020
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.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 9,926,329, to Mar 9, 2036. 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.
7
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. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 1 of 3 maintenance fees is 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 9, 2016, when application PCT/IB2016/051332, the earliest non-provisional in its chain, was filed (this one was filed Jun 19, 2019)Mar 9, 2036High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 9,926,329)resolves to Mar 9, 2036, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderMar 9, 2036High confidence

This family

US 10,406,152In force
Mar 2036
Mar 2036
US 9,926,329In force
Mar 2036
Mar 2036
US 10,278,967In force
Mar 2036
Mar 2036
US 10,874,662this patent
Mar 2036
Mar 2036
US 10,835,528In force
Mar 2036
Mar 2036
Application 17/084,588Abandoned
not computed
not computed
6 of 7 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
Aug 5, 2019
Reel 49961, frame 898
Huntley, C. Frederick M; Kataisto, Erik Wayne; Reisch, Helge Alfred; Sharma, ArchanaRhodes TechnologiesAssignment of Assignor's Interest
Mar 17, 2021
Reel 55627, frame 662
Rhodes TechnologiesNoramco, LLCAssignment 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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