US Plant Patent PP27403
Lubbers Zwart
Salix plant named ‘Lubbers Zwart’
UNDER PATENT
Still under patent. Protection ends June 15, 2035.
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
- PP27403
- Filed
- June 15, 2015
- Granted
- November 22, 2016
- Expires
- June 15, 2035
- Inventor
- LUBBERS HOWARD L
Abstract
A new and distinct cultivar of Salix plant named ‘Lubbers Zwart’, characterized by its upright to outwardly spreading plant habit; tall, strong and straight stems; freely branching habit; freely flowering habit; and dark grey-colored catkins.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
It is claimed: 1. A new and distinct Salix plant named ‘Lubbers Zwart’ as illustrated and described.
Read the full patent: US Plant Patent PP27403 in full — the complete specification, every figure, and the file history.