US Plant Patent PP19624
Double Stuff
Polygonatum plant named ‘Double Stuff’
UNDER PATENT
Still under patent. Protection ends August 2, 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
- PP19624
- Filed
- August 2, 2007
- Granted
- January 13, 2009
- Expires
- August 2, 2027
- Assignee
- LAMACK WILLIAM FRANCIS
- Inventor
- LAMACK WILLIAM FRANCIS
Abstract
A new and distinct Polygonatum plant characterized by foliage with a broad white variegated margin, red stems, and excellent vigor.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct Polygonatum plant as herein illustrated and described.
Read the full patent: US Plant Patent PP19624 in full — the complete specification, every figure, and the file history.