US Plant Patent PP20665
Thundercloud
Panicum plant named ‘Thundercloud’
UNDER PATENT
Still under patent. Protection ends July 30, 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
- PP20665
- Filed
- July 30, 2008
- Granted
- January 19, 2010
- Expires
- July 30, 2028
- Assignee
- TRUCKS GARY M
- Inventor
- TRUCKS GARY M
Abstract
A new and distinct cultivar of ornamental Panicum virgatum plant named ‘Thundercloud’ with erect culms producing broad bluish foliage, with light airy panicles that persist well into the winter suitable as a potted plant, for the garden, and for cut flower arrangements.
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 Panicum virgatum plant named ‘Thundercloud’ as herein described and illustrated, with erect culms producing broad bluish foliage, with light airy panicles that persist well into the winter suitable as a potted plant, for the garden, and for cut flower arrangements.
Read the full patent: US Plant Patent PP20665 in full — the complete specification, every figure, and the file history.