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US

Devices for Maintaining Patency of Surgically Created Channels in Tissue

US 9,533,128 Term ended
OverviewFamilyAssignmentsSources & methods

Term ended Jan 12, 2026 · High confidence

Filed Oct 31, 2012 as application 13/664,862 · Granted Jan 3, 2017
Base term plus 542 days of patent term adjustment (USPTO delay)
Today
20 years from filing
Term ended Jan 12, 2026
2004 2026
Clock starts
Jul 19, 2004
Term ended
Jan 12, 2026
Granted
Jan 3, 2017
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
542
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,308,682, to Jan 12, 2026. The term already ends on or before that date, so the cap shortened nothing.
2 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.
5
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 542 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 Jul 19, 2004, when application PCT/US2004/023304, the earliest non-provisional in its chain, was filed (this one was filed Oct 31, 2012)Jul 19, 2024High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+542 days, USPTO patent term adjustment recordJan 12, 2026High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 8,308,682)resolves to Jan 12, 2026, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 2 maintenance fees paidterm endedHigh confidence
Computed term endThe steps above, in orderJan 12, 2026High confidence

This family

Application PCT/US2004/023304PCT application
no patent term
no patent term
US 8,308,682In force
Jan 2029
Jan 2029
Application PCT/US2007/084330PCT application
no patent term
no patent term
Application 12/469,614Abandoned
not computed
not computed
US 9,533,128this patent
Jan 2026
Jan 2026
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 16, 2013
Reel 31218, frame 227
Broncus Medical Inc.Lifetech Scientific (Hong Kong) Co., Ltd.; Dinova Venture Partners LP II, L.P.; Tip-Broncus LimitedSecurity Agreement
Sep 16, 2013
reel/frame not recorded
Broncus Medical Inc.Lifetech Scientific (Hong Kong) Co., Ltd.Security Agreement
Sep 16, 2013
reel/frame not recorded
Broncus Medical Inc.Dinova Venture Partners LP II, L.P.Security Agreement
Sep 16, 2013
reel/frame not recorded
Broncus Medical Inc.Tip-Broncus LimitedSecurity Agreement
Oct 31, 2013
Reel 31520, frame 362
Kramer, Thomas; Loomas, Bryan; Willink, Christopher; Keast, Thomas; Roschak, EdBroncus Technologies, Inc.Assignment of Assignor's Interest
Oct 31, 2013
Reel 31520, frame 467
Broncus Technologies, Inc.Broncus Medical Inc.Assignment of Assignor's Interest
Jan 9, 2014
Reel 31960, frame 567
Broncus Medical Inc.Lifetech Scientific (Hong Kong) Co., Ltd.; Dinova Venture Partners LP II, L.P.; Tip-Broncus Limited; Aether Corporate LimitedSecurity Agreement
Jan 9, 2014
reel/frame not recorded
Broncus Medical Inc.Lifetech Scientific (Hong Kong) Co., Ltd.Security Agreement
Jan 9, 2014
reel/frame not recorded
Broncus Medical Inc.Dinova Venture Partners LP II, L.P.Security Agreement
Jan 9, 2014
reel/frame not recorded
Broncus Medical Inc.Tip-Broncus LimitedSecurity Agreement
Jan 9, 2014
reel/frame not recorded
Broncus Medical Inc.Aether Corporate LimitedSecurity Agreement
May 23, 2014
Reel 33012, frame 784
Lifetech Scientific (Hong Kong) Co., Ltd.; Dinova Venture Partners LP II, L.P.; Tip-Broncus Limited; Aether Corporate LimitedBroncus Medical Inc.Release of Security 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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