US Plant Patent PP19839
Delft Lace
Astilbe plant named ‘Delft Lace’
UNDER PATENT
Still under patent. Protection ends November 12, 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
- PP19839
- Filed
- November 12, 2007
- Granted
- March 24, 2009
- Expires
- November 12, 2027
- Assignee
- MIJ HOLTMAAT
- Inventor
- HOLTMAAT HENRICUS MARIA JOSEPH
Abstract
A new and distinct cultivar of Astilbe plant named ‘Delft Lace’, characterized by its upright and sturdy plant habit; strong and healthy dark-green colored foliage; freely flowering habit; dark pink-colored flowers; and good garden performance.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct Astilbe plant named ‘Delft Lace’ as illustrated and described.
Read the full patent: US Plant Patent PP19839 in full — the complete specification, every figure, and the file history.