US Plant Patent PP21561
Crystalina
Clethra alnifolia plant named “Crystalina”
UNDER PATENT
Still under patent. Protection ends October 13, 2029.
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
- PP21561
- Filed
- October 13, 2009
- Granted
- December 7, 2010
- Expires
- October 13, 2029
- Assignee
- UNIV NORTH CAROLINA STATE
- Inventor
- RANNEY THOMAS G
Abstract
‘Crystalina’ is a new variety of Clethra alnifolia with a low, compact, rounded habit, with long flower racemes and numerous fragrant flowers, 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 Clethra alnifolia plant as shown and described herein.
Read the full patent: US Plant Patent PP21561 in full — the complete specification, every figure, and the file history.