US Plant Patent PP15556
Hercules
Chrysanthemum plant named ‘Hercules’
PUBLIC DOMAIN
Patent expired February 1, 2024. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on January 14, 2024. This patent earned 18 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP15556
- Filed
- January 14, 2004
- Granted
- February 15, 2005
- Expires
- February 1, 2024
- Assignee
- CHRYSANTHEMUM BREEDERS ASS NV
- Inventor
- BOEDER MARK ROLAND
Abstract
A chyrsanthemum plant named ‘Hercules’ characterized by its medium sized blooms with red ray florets and prolific branching; natural season flower date August 18-23; blooming for a period of 5 weeks.
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 as described and illustrated.
Read the full patent: US Plant Patent PP15556 in full — the complete specification, every figure, and the file history.