The Patent Finder
US

Tissue Sampling Devices, Systems and Methods

US 8,517,955 In force
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Jun 4, 2014 (Sroncub Technologies, Inc.).

Term ends Jul 9, 2031 · High confidence

Filed May 10, 2010 as application 12/776,978 · Granted Aug 27, 2013
Base term plus 425 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2010 2031
Clock starts
May 10, 2010
Term ends
Jul 9, 2031
Granted
Aug 27, 2013
base term patent term adjustment 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
425
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 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.
4
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 425 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 May 10, 2010, when this application, 12/776,978, was filedMay 10, 2030High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+425 days, USPTO patent term adjustment recordJul 9, 2031High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderJul 9, 2031High confidence

This family

US 8,517,955this patent
Jul 2031
Jul 2031
US 9,307,960In force
Aug 2030
Aug 2030
US 9,907,543In force
May 2030
May 2030
US 10,792,022In force
May 2030
May 2030
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 20, 2010
Reel 24865, frame 162
Keast, Thomas M.; Weiss, Aaron M.; Gwerder, Eric J.; Schwardt, Jeffrey; Roschak, Edmund J.Broncus Technologies, Inc.Assignment of Assignor's Interest
Sep 12, 2012
Reel 28943, frame 371
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
Jun 4, 2014
Reel 33085, frame 827
Broncus Medical, Inc.; Broncus Holding CorporationSroncub Technologies, Inc.Security Interest
Apr 12, 2017
Reel 42242, frame 408
Broncus Medical, Inc.; Broncus Holding CorporationSroncub, Inc.Corrective Assignment to Correct the Assignee Name/Receiving Party Name Previously Recorded on Reel 033085 Frame 0827. Assignor(S) Hereby Confirms the Security Interest.
Sep 21, 2017
Reel 43949, frame 765
Sroncub, Inc.Broncus 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.

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited