US Plant Patent PP20474
Bonmadmerlo
Argyranthemum plant named ‘Bonmadmerlo’
UNDER PATENT
Still under patent. Protection ends June 19, 2028.
Twenty years from the filing date would end on June 1, 2027. This patent earned 384 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP20474
- Filed
- June 1, 2007
- Granted
- November 10, 2009
- Expires
- June 19, 2028
- Assignee
- BONZA BOTAN PTY LTD
- Inventor
- BERNUETZ ANDREW
Abstract
A new and distinct cultivar of Argyranthemum plant named ‘Bonmadmerlo’, characterized by its double type dark red-colored flowers, medium green-colored foliage, and moderately vigorous, upright-mounded growth habit.
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 Argyranthemum plant named ‘Bonmadmerlo’, substantially as herein shown and described.
Read the full patent: US Plant Patent PP20474 in full — the complete specification, every figure, and the file history.