The Patent Finder

MacDon Industries Ltd.

138 patents currently held · Updated Nov 14, 2026
8 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.

Recorded under 3 name spellings.

39
Ending by 2030
Nov 2026
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 Dec 18 to 27, 2026 · next Dec 18
  • 1 fee due Jan 16, 2027
    The maintenance fee for Draper header for attachment to a harvesting machine (US 10,349,580) comes due Jan 16, 2027. Unpaid by Jul 16, 2027, it lapses early.
  • 2 fees due Feb 6 to 25, 2027 · next Feb 6
  • 2 fees due Mar 17 to 19, 2027 · next Mar 17
  • 3 fees due May 5 to 19, 2027 · next May 5
  • 1 fee due Jun 26, 2027
    The maintenance fee for Header for a Crop Harvesting Machine Having a Twisted Side Draper (US 11,849,675) comes due Jun 26, 2027. Unpaid by Dec 27, 2027, it lapses early.
  • 1 fee due Aug 16, 2027
    The maintenance fee for Rotary crop harvesting machine with cutter bar tilt control (US 9,258,941) comes due Aug 16, 2027. Unpaid by Feb 16, 2028, it lapses early.
  • 1 fee due Sep 3, 2027
    The maintenance fee for Stub guard for a sickle cutter system (US 10,575,463) comes due Sep 3, 2027. Unpaid by Mar 3, 2028, it lapses early.
  • 4 fees due Oct 14 to 21, 2027 · next Oct 14

Which patents, and when each one lapses · Pro

Recent changes

  • 4 of the patents on this record were granted since Aug 16, 2026
  • 3 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 7,472,533Crop header with draper canvas and a seal with an element of the cutter bar
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,438,305Agricultural tractor with movable step
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,484,349Operating and storage positions of a swather conveyor
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,467,505Crop harvesting header with drive reversal
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,392,124Crop cutting header with speed control of driven element using valve profiling
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,328,565Knife guard construction for sickle knife
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,658,059Synchronous drive for split sickle bars on harvester header
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,647,755Adjustment of the hitch arm of a pull-type crop harvesting machine
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,497,069Crop harvesting header with reversible drive to the sickle knife
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,918,076Device for maintaining wing balance on a multi-section header
In force
 · From the USPTO record
In forceFrom the USPTO record
10 of 138 patents shown.
Pro members see all 138.
Pro members: see all 138 patents
Also on record, not counted in the 138: 8 patents in force now held by others · 22 lapsed for an unpaid fee · 46 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.

15 pending · 3 abandoned · 21 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