The Patent Finder

Constellium Issoire

55 patents currently held · Updated Nov 14, 2026
3 more in force are now held by other companies
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
11
Ending by 2030
Jan 2027
Next term end

When these terms end

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.
  • 2 fees due Dec 6, 2026
  • 1 fee due Feb 22, 2027
    The maintenance fee for Process for manufacturing sheet metal made of aluminum-copper-lithium alloy for manufacturing an airplane fuselage (US 11,732,333) comes due Feb 22, 2027. Unpaid by Aug 23, 2027, it lapses early.
  • 3 fees due Mar 3 to 17, 2027 · next Mar 3
  • 1 fee due Jun 10, 2027
    The maintenance fee for Thin sheets made of an aluminium-copper-lithium alloy for producing airplane fuselages (US 10,501,835) comes due Jun 10, 2027. Unpaid by Dec 10, 2027, it lapses early.
  • 1 fee due Jul 14, 2027
    The maintenance fee for Enclosure having a sealing device for a casting installation (US 10,532,398) comes due Jul 14, 2027. Unpaid by Jan 14, 2028, it lapses early.
  • 1 fee due Aug 18, 2027
    The maintenance fee for Method for inspecting a liquid metal by ultrasounds (US 10,563,285) comes due Aug 18, 2027. Unpaid by Feb 18, 2028, it lapses early.
  • 1 fee due Sep 19, 2027
    The maintenance fee for Device for Trapping Hydrogen (US 11,932,920) comes due Sep 19, 2027. Unpaid by Mar 20, 2028, it lapses early.
  • 1 fee due Nov 7, 2027
    The maintenance fee for Al—Zn—Cu—Mg alloys and their manufacturing process (US 11,976,347) comes due Nov 7, 2027. Unpaid by May 8, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

  • 2 terms have 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.
PatentTitleStatus Expires Confidence
US 7,615,125Aluminum alloy products with high toughness and production process thereof
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,744,704High fracture toughness aluminum-copper-lithium sheet or light-gauge plate suitable for use in a fuselage panel
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,862,903Monolithic and bi-functional extruded structural element
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,091,830Stringer for an Aircraft Wing and a Method of Forming Thereof
In force
 · High confidence
In forceHigh confidence
US 8,323,426Al-Li rolled product for aerospace applications
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,202,347Process for recycling aluminum alloy scrap coming from the aeronautical industry
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,938,309Pulsed friction stir welding process
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,144,998Method of making a structural element for aeronautical construction comprising differential work-hardening
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,771,441High fracture toughness aluminum-copper-lithium sheet or light-gauge plates suitable for fuselage panels
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,302,657Casting process for aluminum alloys
In force
 · From the USPTO record
In forceFrom the USPTO record
10 of 55 patents shown.
Pro members see all 55.
Pro members: see all 55 patents
Also on record, not counted in the 55: 3 patents in force now held by others · 17 lapsed for an unpaid fee · 21 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.

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.

10 pending · 4 abandoned · 17 no status recorded

List them

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited