US Plant Patent PP16521
Grace Time Salmon Improved
Chrysanthemum plant named ‘Grace Time Salmon Improved’
PUBLIC DOMAIN
Patent expired February 20, 2025. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on November 18, 2024. This patent earned 94 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP16521
- Filed
- November 18, 2004
- Granted
- May 9, 2006
- Expires
- February 20, 2025
- Assignee
- CLEANGRO LTD
- Inventor
- REDMAN RUTH
Abstract
A new variety of chrysanthemum plant named ‘Grace Time Salmon Improved,’ having a good uniform canopy of salmon quill single flowers with a light green disc. The new variety has a medium vigor and a uniform spreading habit with a 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 PP16521 in full — the complete specification, every figure, and the file history.