FK Irons Inc.

40 patents currently held · Updated Nov 15, 2026

Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

Ending by 2030

Nov 2034

Next term end

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

20262027202820292030203120322033203420352036203720382039204020412042204320442045

Fee deadlines

Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.

1 fee due Jul 2, 2027
The maintenance fee for Adapter Device For Tattoo Machine (US 11,857,749) comes due Jul 2, 2027. Unpaid by Jan 3, 2028, it lapses early.
2 fees due Oct 2 to 16, 2027 · next Oct 2

Which patents, and when each one lapses · Pro

Recent changes

1 of the patents on this record was granted since Aug 17, 2026

Patents held now

Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.

Patent	Title	Status	Expires	Confidence
US D865,965	Tattoo Machine In force Term ends Nov 5, 2034 · High confidence	In force	Term ends Nov 5, 2034	High confidence
US 9,662,483	Rotary Tattoo Machine In force Term ends Jul 24, 2035 · High confidence	In force	Term ends Jul 24, 2035	High confidence
US D893,716	Tattoo Needle Cartridge In force Term ends Aug 18, 2035 · High confidence	In force	Term ends Aug 18, 2035	High confidence
US D910,846	Tattoo Machine In force Term ends Feb 16, 2036 · High confidence	In force	Term ends Feb 16, 2036	High confidence
US D934,422	Tattoo Needle Cartridge In force Term ends Oct 26, 2036 · High confidence	In force	Term ends Oct 26, 2036	High confidence
US D936,006	Tattoo Power Supply In force Term ends Nov 16, 2036 · High confidence	In force	Term ends Nov 16, 2036	High confidence
US D939,086	Tattoo Machine In force Term ends Dec 21, 2036 · High confidence	In force	Term ends Dec 21, 2036	High confidence
US D939,087	Tattoo Machine In force Term ends Dec 21, 2036 · High confidence	In force	Term ends Dec 21, 2036	High confidence
US D939,701	Tattoo Machine In force Term ends Dec 28, 2036 · High confidence	In force	Term ends Dec 28, 2036	High confidence
US D939,702	Tattoo Machine In force Term ends Dec 28, 2036 · High confidence	In force	Term ends Dec 28, 2036	High confidence

10 of 40 patents shown.

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Pro members: see all 40 patents

Sources and methods

Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand. How this record was built

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

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Published applications

US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.

6 pending · 3 abandoned

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