Fxi, Inc.

14 patents currently held · Updated Nov 14, 2026

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

Ending by 2030

Apr 2028

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 May 19, 2027
The maintenance fee for Mattress with Combination of Pressure Redistribution and Internal Air Flow Guides (US 10,477,975) comes due May 19, 2027. Unpaid by Nov 19, 2027, it lapses early.
1 fee due Sep 19, 2027
The maintenance fee for Coated Substrates and Articles with Anti-Viral Properties, and Fabrication Processes (US 11,930,867) comes due Sep 19, 2027. Unpaid by Mar 20, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

1 term has ended since Aug 16, 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 7,955,544	Surface Shaping of Compressible Cellular Polymers with Continuous Rotary Method In force Term ends Apr 23, 2028 · High confidence	In force	Term ends Apr 23, 2028	High confidence
US 7,886,388	Mattress Adapted for Supporting Heavy Weight Persons In force Term ends Apr 24, 2029 · High confidence	In force	Term ends Apr 24, 2029	High confidence
US 8,209,804	Customizable Mattress Topper System In force Term ends Jun 6, 2029 · Medium confidence	In force	Term ends Jun 6, 2029	Medium confidence
US 8,359,689	Mattress Adapted for Supporting Heavy Weight Persons In force Term ends Sep 1, 2029 · High confidence	In force	Term ends Sep 1, 2029	High confidence
US 8,247,466	Variable Felted Polyurethane Foams for Sponges and Wipes In force Term ends Dec 10, 2029 · High confidence	In force	Term ends Dec 10, 2029	High confidence
US 8,621,694	Sleep Support Surface That Includes a Layer with Large Diameter Cleaving In force Term ends Feb 6, 2031 · High confidence	In force	Term ends Feb 6, 2031	High confidence
US 9,392,875	Body Support System with Combination of Pressure Redistribution and Internal Air Flow Guide(S) for Withdrawing Heat and Moisture Away from Body Reclining on Support Surface of Body Support System In force Term ends Jan 18, 2033 · High confidence	In force	Term ends Jan 18, 2033	High confidence
US 10,154,933	Compressible or Retractable Support for Air Blower Cavity of Air Flow Mattress In force Term ends Feb 12, 2034 · High confidence	In force	Term ends Feb 12, 2034	High confidence
US 10,477,975	Mattress with Combination of Pressure Redistribution and Internal Air Flow Guides In force Term ends Mar 17, 2036 · High confidence	In force	Term ends Mar 17, 2036	High confidence
US D928,440	Cleaning Sponge In force Term ends Aug 17, 2036 · High confidence	In force	Term ends Aug 17, 2036	High confidence

10 of 14 patents shown.

Pro members see all 14.

Pro members: see all 14 patents

Also on record, not counted in the 14: 16 lapsed for an unpaid fee · 44 ended at full term. List them

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.

1 pending · 5 abandoned

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