US Plant Patent PP20167
Durleo
Crabapple tree named ‘Durleo’
UNDER PATENT
Still under patent. Protection ends April 14, 2028.
No term adjustment or disclaimer is recorded against this patent, so this is the full statutory term — twenty years from the filing date.

The record
- Patent number
- PP20167
- Filed
- April 14, 2008
- Granted
- July 7, 2009
- Expires
- April 14, 2028
- Assignee
- DURAND & GRAHAM LTD
- Inventor
- DURAND JAMES RICHARD
Abstract
A new and distinctive cultivar of flowering crabapple, botanically known as Malus ‘Durleo’ is characterized by a uniquely compact upright crown form, superior winter hardiness in northern zones, glossy bronze-purple leaves, an abundance of medium pink flowers, small ornamental fruit and high disease resistant ‘Durleo’ has an unusual characteristic of creating bole-like bumps on its bark once it attains a trunk diameter of over 2 inches caliper. The new cultivar is particularly suited for use as an accent ornamental flowering tree, attractive in a group landscape planting and planted in a row for a screen.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct cultivar of crabapple tree named ‘Durleo’ as herein illustrated and described.
Read the full patent: US Plant Patent PP20167 in full — the complete specification, every figure, and the file history.