Illuminated Telescoping Cannula

US 10,568,712 Lapsed on the fee record

Lapsed Feb 25, 2024 on the fee record · Medium confidence

Computed 20-year base term

Why Medium: The disclaimer's references carry disclaimers of their own not yet read (US 8,708,896), so the cap could be lower.

First maintenance fee unpaid; grace period ended.

Held by Invuity, Inc.

Filed Dec 20, 2016 as application 15/384,776 · Granted Feb 25, 2020

Base term, 20 years from filing, plus 402 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer

Today

Lapsed Feb 25, 2024

2006 2027

Clock starts
Apr 3, 2006

No longer in force
Feb 25, 2024

Granted
Feb 25, 2020

Term would have run to
Apr 12, 2027

base term patent term adjustment after the term ends Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know

402

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 8,708,896.

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 Apr 3, 2006, when the earliest non-provisional application in its chain was filed (this one was filed Dec 20, 2016)	Apr 3, 2026	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	+402 days, USPTO patent term adjustment record	May 10, 2027	High confidence
Terminal disclaimer cap	Disclaimer resolved from the filed document (refs US 8,708,896)	capped to Apr 12, 2027	Medium confidence
Patent term extension	None on file	no change	High confidence
Fee events	0 of 1 maintenance fees paid	lapsed Feb 25, 2024	High confidence
Computed term end	The steps above, in order	Feb 25, 2024	Medium 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.

Illuminated Telescoping Cannula

Lapsed Feb 25, 2024 on the fee record · Medium confidence

20-year base term ended Apr 3, 2026

How we calculated this date

Sources