US Plant Patent PP36089
BIRTHDAY GIRL
Clematis plant named ‘BIRTHDAY GIRL’
UNDER PATENT
Still under patent. Protection ends November 6, 2043.
No term adjustment or disclaimer is recorded against this patent, so this is the full statutory term — twenty years from the filing date.

The record
- Patent number
- PP36089
- Filed
- November 6, 2023
- Granted
- September 3, 2024
- Expires
- November 6, 2043
- Assignee
- SPRING MEADOW NURSERY INC
- Inventor
- MARCZYŃSKI SZCZEPAN
Abstract
A new and distinct Clematis plant named ‘BIRTHDAY GIRL’ is disclosed, characterized by semi-double to double flowers blooming from May to July. Distinct pinkish-purple flower color, with a reddish-purple “bar.” The new cultivar is a Clematis typically suited for ornamental container and landscape use.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
What is claimed is: 1. A new and distinct cultivar of Clematis plant named ‘BIRTHDAY GIRL’ as herein illustrated and described.
Read the full patent: US Plant Patent PP36089 in full — the complete specification, every figure, and the file history.