Spinal Implant Revision Device

US 9,451,994 Surrendered on reissue

Overview Sources & methods

Surrendered on reissue May 15, 2018 · Medium confidence

Computed 20-year base term

Why Medium: No fee event states this; the fee state is read from the payments the fee record holds.

Surrendered on reissue May 15, 2018 · its term and maintenance fees continue in US RE46,840.

Held by Spinal Elements, Inc.

Filed Jun 30, 2015 as application 14/755,340 · Granted Sep 27, 2016

Base term, 20 years from filing

Today

Surrendered May 15, 2018

2015 2035

Clock starts
Jun 30, 2015

No longer in force
May 15, 2018

Granted
Sep 27, 2016

Term would have run to
Jun 30, 2035

base term 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

None

Term adjustment

No prosecution delay on this record.

None

Terminal disclaimer

No disclaimer on this record.

Not on record

Maintenance fees

USPTO's record of this patent carries no fee events. A gap in the record, not evidence of lapse.

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 Jun 30, 2015, when this application, 14/755,340, was filed	Jun 30, 2035	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	None on file	no change	High confidence
Terminal disclaimer cap	None on record	no cap applied	High confidence
Patent term extension	None on file	no change	High confidence
Fee events	No fee events in USPTO's record of this patent. A gap in the record, not evidence of lapse	no change	Medium confidence
Reissue	US RE46,840 issued May 15, 2018, and this patent's term continues in it (35 U.S.C. 251, 252)	surrendered May 15, 2018	High confidence
Surrendered on reissue	The steps above, in order	May 15, 2018	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.

Spinal Implant Revision Device

Surrendered on reissue May 15, 2018 · Medium confidence

20-year base term ends Jun 30, 2035

How we calculated this date

Sources