US Plant Patent PP14931
Thetis
Chrysanthemum plant named ‘Thetis’
PUBLIC DOMAIN
Patent expired January 11, 2023. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on December 12, 2022. This patent earned 30 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP14931
- Filed
- December 12, 2002
- Granted
- June 22, 2004
- Expires
- January 11, 2023
- Assignee
- CHRYSANTHEMUM BREEDERS ASS NV
- Inventor
- NOODELIJK ROBERT
Abstract
A chrysanthemum plant named 'Thetis' characterized by its medium sized blooms with yellow ray florets and prolific branching; natural season flower date August 19-24; 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.
I claim: 1. A new and distinct variety of chrysanthemum plant as described and illustrated.
Read the full patent: US Plant Patent PP14931 in full — the complete specification, every figure, and the file history.