US Plant Patent PP19220
Snow Bells
Clematis plant named ‘Snow Bells’
UNDER PATENT
Still under patent. Protection ends May 23, 2027.
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
- PP19220
- Filed
- May 23, 2007
- Granted
- September 16, 2008
- Expires
- May 23, 2027
- Assignee
- RUUD VAN DER WERF
- Inventor
- HANNINK JOHANNES ANTONIUS JOZEF
Abstract
A clematis plant particularly distinguished by being floriferous and having light green-white to white flowers. In addition, the flowers are visible and not hidden behind the foliage and have a very strong and pleasant fragrance. The plant is evergreen and flowers in late winter.
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 Clematis plant as shown and described herein.
Read the full patent: US Plant Patent PP19220 in full — the complete specification, every figure, and the file history.