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US

Methods and Systems for Draining Cerebrospinal Fluid into the Venous System

US 12,011,557 In force
OverviewFamilyAssignmentsSources & methods

Term ends Oct 30, 2035 · High confidence

Filed Aug 20, 2020 as application 16/998,606 · Granted Jun 18, 2024
Base term plus 973 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
20 years from filing
2015 2035
Clock starts
Oct 30, 2015
Term ends
Oct 30, 2035
Granted
Jun 18, 2024
base term 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
973
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 10,272,230, US 10,307,577, US 10,758,718, US 9,387,311, US 9,545,505, US 9,669,195, US 9,724,501.
0 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
14
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 973 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 0 of 2 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 Oct 30, 2015, when application 14/929,066, the earliest non-provisional in its chain, was filed (this one was filed Aug 20, 2020)Oct 30, 2035High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+973 days, USPTO patent term adjustment recordJun 29, 2038High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 10,272,230, US 10,307,577, US 10,758,718, US 9,387,311, US 9,545,505, US 9,669,195, US 9,724,501)capped to Oct 30, 2035High confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events0 of 2 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderOct 30, 2035High confidence

This family

Application 14/929,066Abandoned
not computed
not computed
US 9,387,311In force
Oct 2035
Oct 2035
US 9,545,505In force
Oct 2035
Oct 2035
US 9,662,479In force
Oct 2035
Oct 2035
US 9,669,195In force
Oct 2035
Oct 2035
US 9,724,501In force
Oct 2035
Oct 2035
US 10,279,154In force
Oct 2035
Oct 2035
US 10,058,686In force
Oct 2035
Oct 2035
8 of 14 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 1, 2020
Reel 53650, frame 195
Heilman, Carl; Malek, Adel M.; Rezac, David A.; Robinson, Timothy W.; Ting, JosephCerevasc, LLCAssignment of Assignor's Interest
Sep 4, 2020
Reel 53710, frame 475
Cerevasc, LLCCerevasc, Inc.Change 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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