Skip to content
The Patent Garden

US Plant Patent PP6746

Wandell

English oak named `Wandell`

PUBLIC DOMAIN

Patent expired November 19, 2007. This plant is in the public domain — anyone may propagate and sell it.

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
PP6746
Filed
November 19, 1987
Granted
April 18, 1989
Expires
November 19, 2007

Abstract

A unique Quercus robur denominated `Wandell`, characterized primarily by having an extremely fastigiate, upright, attractive appearance; resistance to powdery mildew; and, dense, concentrated and strongly ascending branching habit.

Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.

I claim: 1. A new and distinctive variety and the parts thereof, of Quercus robur named `Wandell` as described herein, that differs from all other varieties by the unique combination of: (1) a narrow, strongly fastigiate crown that is symmetrical, tight and neat with a naturally occurring well groomed appearance; (2) this type of crown is formed on young plants, continues to mature trees, and is consistantly maintained when the plants are vegetatively propagated; and (3) the plants are resistant to powdery mildew.

Read the full patent: US Plant Patent PP6746 in full — the complete specification, every figure, and the file history.