The Patent Finder
US

Method and System for Directing a Localized Biological Response to an Implant

US 9,517,023 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed Dec 13, 2024 on the fee record · High confidence

Second maintenance fee unpaid; grace period ended.

Filed May 27, 2010 as application 12/789,048 · Granted Dec 13, 2016
Base term, 20 years from filing, plus 621 days of patent term adjustment (USPTO delay)
Today
Lapsed Dec 13, 2024
2010 2032
Clock starts
May 27, 2010
No longer in force
Dec 13, 2024
Granted
Dec 13, 2016
Term would have run to
Feb 7, 2032
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
621
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
10
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 Feb 7, 2032: its 20-year base term plus 621 days of term adjustment for prosecution delay. 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 27, 2010, when this application, 12/789,048, was filedMay 27, 2030High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+621 days, USPTO patent term adjustment recordFeb 7, 2032High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 3 maintenance fees paidlapsed Dec 13, 2024High confidence
Computed term endThe steps above, in orderDec 13, 2024High confidence

This family

US 9,517,023this patent
Dec 2024
Dec 2024
Application PCT/US2010/036698PCT application
no patent term
no patent term
US 10,463,287In force
Oct 2031
Oct 2031
US 10,010,272In force (reinstated)
May 2031
May 2031
US 10,117,613In force
Oct 2031
Oct 2031
US 10,583,308Lapsed on the fee record
Mar 2024
Mar 2024
Application 15/606,666Abandoned
not computed
not computed
Application 16/017,752Abandoned
not computed
not computed
8 of 10 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
May 27, 2010
Reel 24452, frame 481
McMillan, William A.; Wisniewski, NatalieProfusa, Inc.Assignment of Assignor's Interest
Dec 15, 2017
Reel 44407, frame 99
McMillan, William A.; Wisniewski, Natalie A.Profusa, Inc.Assignment 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.

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