Hemodynamic Reserve Monitor and Hemodialysis Control

US 11,389,069 Lapsed on the fee record

Overview Sources & methods

Lapsed Jul 19, 2026 on the fee record · Low confidence

Computed 20-year base term

First maintenance fee unpaid; grace period ended. The USPTO has not yet posted the lapse.

Held by Flashback Technologies, Inc.

Filed Jul 13, 2017 as application 15/649,411 · Granted Jul 19, 2022

Base term, 20 years from filing

Today

Lapsed Jul 19, 2026

2009 2029

Clock starts
Oct 26, 2009

No longer in force
Jul 19, 2026

Granted
Jul 19, 2022

Term would have run to
Oct 26, 2029

base term after the term ends 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 9,757,041, to Oct 26, 2029. The term already ends on or before that date, so the cap shortened nothing.

0 of 1

Maintenance fees paid

One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it paid.

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.

Step	Input	Date after this step	Confidence
Base term, 20 years from filing	Clock starts Oct 26, 2009, when the earliest non-provisional application in its chain was filed (this one was filed Jul 13, 2017); a parent in its chain could not be resolved (the next row)	Oct 26, 2029	High confidence
Continuity chain	A parent in the chain could not be resolved	dated from this application's own claim	Medium confidence
Patent term adjustment	None on file	no change	High confidence
Terminal disclaimer cap	Disclaimer resolved from the filed document (refs US 9,757,041)	resolves to Oct 26, 2029, no earlier than this term, so no change	High confidence
Patent term extension	None on file	no change	High confidence
Fee events	The fee record shows no payment for this window, and USPTO's status still reads "Patented Case"	lapsed Jul 19, 2026	Medium confidence
Computed term end	The steps above, in order	Jul 19, 2026	Low confidence

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.

Not on this page: the patent's family, its recorded assignments and its citation count. USPTO's assignment records, linked above, list every recorded assignment.

Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.

Hemodynamic Reserve Monitor and Hemodialysis Control

Lapsed Jul 19, 2026 on the fee record · Low confidence

20-year base term ends Oct 26, 2029

How we calculated this date

Sources