US Plant Patent PP20498
Mistral
Echinacea plant named ‘Mistral’
UNDER PATENT
Still under patent. Protection ends April 28, 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
- PP20498
- Filed
- April 28, 2008
- Granted
- November 17, 2009
- Expires
- April 28, 2028
- Assignee
- INSPIRATION PLANT CV
- Inventor
- KEMPEN ANTONIUS JOHANNES MARIA
Abstract
An Echinacea cultivar particularly distinguished by its extremely compact growth, red-purple flowers, very rich flowering due to branched peduncles and strong peduncles, is disclosed.
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 Echinacea plant, as shown and described herein.
Read the full patent: US Plant Patent PP20498 in full — the complete specification, every figure, and the file history.