US Plant Patent PP17597
Carnival
Clematis plant named ‘Carnival’
PUBLIC DOMAIN
Patent expired September 13, 2024. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on May 17, 2024. This patent earned 119 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP17597
- Filed
- May 17, 2004
- Granted
- April 17, 2007
- Expires
- September 13, 2024
- Assignee
- VANLAEKEN JAMES P
- Inventor
- VANLAEKEN JAMES P
Abstract
A new variety of clematis plant named ‘Carnival’. The variety is characterized by its unique color combination, having a medium lavender blue tepal with a dark lavender bar. The bright yellow stamens further distinguish the flowers.
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 clematis plant named ‘Carnival’ as shown and described herein.
Read the full patent: US Plant Patent PP17597 in full — the complete specification, every figure, and the file history.