The Patent Finder

Archem Inc.

85 patents currently held · Updated Nov 15, 2026
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
15
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.
  • 3 fees due Jan 16 to 25, 2027 · next Jan 16
  • 1 fee due Feb 27, 2027
    The maintenance fee for Mold, Method for Manufacturing Molded Foam Body, and Molded Foam Body (US 10,391,686) comes due Feb 27, 2027. Unpaid by Aug 27, 2027, it lapses early.
  • 1 fee due Mar 19, 2027
    The maintenance fee for Foam Molded Product, Method for Producing Foam Molded Product, and Molding Die Structure of Foam Molded Product (US 11,759,982) comes due Mar 19, 2027. Unpaid by Sep 20, 2027, it lapses early.
  • 3 fees due Apr 15 to 30, 2027 · next Apr 15
  • 3 fees due May 5 to 12, 2027 · next May 5
  • 1 fee due Jun 29, 2027
    The maintenance fee for Seat Pad (US 9,221,369) comes due Jun 29, 2027. Unpaid by Dec 29, 2027, it lapses early.
  • 2 fees due Jul 2 to 14, 2027 · next Jul 2
  • 4 fees due Aug 4 to 27, 2027 · next Aug 4
  • 1 fee due Sep 26, 2027
    The maintenance fee for Resin Foamed Body (US 11,938,854) comes due Sep 26, 2027. Unpaid by Mar 27, 2028, it lapses early.
  • 4 fees due Oct 2 to 28, 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
  • 3 terms have ended 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.
PatentTitleStatus Expires Confidence
US 8,066,253Formation of Foamed Resin Article
In force
 · High confidence
In forceHigh confidence
US 7,546,072Toner Layer Thickness Regulation Member and Image Forming Apparatus Having Same
In force
 · High confidence
In forceHigh confidence
US 7,897,221Production of Blade for Office Appliances
In force
 · High confidence
In forceHigh confidence
US 8,663,748A Method of Producing a Conductive Roller Utilizing a Semi-Curing Step
In force
 · High confidence
In forceHigh confidence
US 8,119,252Electroconductive Endless Belt and Image-Forming Apparatus Including the Same
In force
 · High confidence
In forceHigh confidence
US 8,236,229Mold for Development Blade and Method of Producing Development Blade
In force
 · High confidence
In forceHigh confidence
US 8,452,217Toner Supply and Cleaning Roller Comprising Electroconductive Elastic Layer Supported by Means of Adhesive Layer and Image Forming Apparatus Using the Same
In force
 · High confidence
In forceHigh confidence
US 8,999,501Urethane Foam Member, Seal Structure, Toner Storage Container, Process Cartridge, Image Forming Apparatus
In force
 · High confidence
In forceHigh confidence
US 8,292,791Electrical Conductive Roller
In force
 · High confidence
In forceHigh confidence
US 8,337,373Conductive Elastic Roller and Image Forming Apparatus Comprising the Same
In force
 · High confidence
In forceHigh confidence
10 of 85 patents shown.
Pro members see all 85.
Pro members: see all 85 patents
Also on record, not counted in the 85: 8 lapsed for an unpaid fee · 10 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.

3 pending · 1 abandoned · 1 no status recorded

List them

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited