US Plant Patent PP24770
Carnival Silver Streak
Heuchera plant named ‘Carnival Silver Streak’
UNDER PATENT
Still under patent. Protection ends February 7, 2033.
Twenty years from the filing date would end on August 3, 2032. This patent earned 188 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP24770
- Filed
- August 3, 2012
- Granted
- August 12, 2014
- Expires
- February 7, 2033
- Assignee
- BALL HORTICULTURAL CO, LEUE ELLEN
- Inventor
- LEUE ELLEN
Abstract
A new and distinct cultivar of Heuchera plant named ‘Carnival Silver Streak’, characterized by its dark greyed purplish-green and silver colored foliage, greyed yellow and green colored flowers, and moderately vigorous, mounded growth habit, is disclosed.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
What is claimed is: 1. A new and distinct cultivar of Heuchera plant named ‘Carnival Silver Streak’, substantially as herein shown and described.
Read the full patent: US Plant Patent PP24770 in full — the complete specification, every figure, and the file history.