US Plant Patent PP15781
Esperanto Improved
Chrysanthemum plant named ‘Esperanto Improved’
PUBLIC DOMAIN
Patent expired February 25, 2024. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on September 23, 2023. This patent earned 155 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP15781
- Filed
- September 23, 2003
- Granted
- June 7, 2005
- Expires
- February 25, 2024
- Assignee
- AURORA VARIETIES S L
- Inventor
- HAMMOND RICHARD
Abstract
A new variety of Chrysanthemum plant named ‘Esperanto Improved,’ having a uniform canopy of dark pink-purple/white striped single type flowers with a yellow/green disc. The new variety exhibits medium vigor with a free branching and uniform spreading habit and good foliage presentation.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct variety of Chrysanthemum plant, substantially as described and illustrated herein.
Read the full patent: US Plant Patent PP15781 in full — the complete specification, every figure, and the file history.