The Patent Finder

CTB, Inc.

86 patents currently held · Updated Nov 14, 2026
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
12
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.
  • 1 fee due Feb 28, 2027
    The maintenance fee for Wallet (US 11,737,531) comes due Feb 28, 2027. Unpaid by Aug 30, 2027, it lapses early.
  • 2 fees due Apr 13 to 17, 2027 · next Apr 13
  • 2 fees due May 3 to 21, 2027 · next May 3
  • 1 fee due Jul 28, 2027
    The maintenance fee for Breather cap assembly (US 10,542,731) comes due Jul 28, 2027. Unpaid by Jan 28, 2028, it lapses early.
  • 3 fees due Aug 2 to 20, 2027 · next Aug 2
  • 1 fee due Oct 9, 2027
    The maintenance fee for Grain Bin Unload Trough Conveyor Auger Hanger Assembly And Method (US 11,952,218) comes due Oct 9, 2027. Unpaid by Apr 10, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

  • 2 of the patents on this record were granted since Aug 16, 2026
  • 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 7,487,621Grain bin floor support and related method of construction
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,166,964Heater for use in an agricultural house
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,584,716Pan breeder feeder
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,587,990Pan breeder feeder
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,581,512Pan breeder feeder
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,681,526Watering device for poultry
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,992,356Structural roof venting system for grain bin and associated method
In force
 · From the USPTO record
In forceFrom the USPTO record
US D708,402Breather cap for use in connection with a watering assembly
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,806,387Cable guide
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,511,010Integral catwalk support
In force
 · From the USPTO record
In forceFrom the USPTO record
10 of 86 patents shown.
Pro members see all 86.
Pro members: see all 86 patents
Also on record, not counted in the 86: 23 lapsed for an unpaid fee · 176 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.

7 pending · 10 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