US Plant Patent PP23369
Blackout
Viola plant named ‘Blackout’
UNDER PATENT
Still under patent. Protection ends September 1, 2031.
Twenty years from the filing date would end on July 25, 2031. This patent earned 38 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP23369
- Filed
- July 25, 2011
- Granted
- January 29, 2013
- Expires
- September 1, 2031
- Assignee
- KONING LAMMERT
- Inventor
- KONING LAMMERT
Abstract
A new and distinct cultivar of Viola plant named ‘Blackout’, characterized by its deep black colored flowers, medium green-colored foliage, low growth vigor, and outwardly-spreading, mounded growth habit, 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 Viola plant named ‘Blackout’, substantially as herein shown and described.
Read the full patent: US Plant Patent PP23369 in full — the complete specification, every figure, and the file history.