US Plant Patent PP14823
Pretty in Blue
Clematis plant named ‘Pretty in Blue’
PUBLIC DOMAIN
Patent expired April 29, 2023. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on February 13, 2023. This patent earned 75 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP14823
- Filed
- February 13, 2003
- Granted
- May 25, 2004
- Expires
- April 29, 2023
- Assignee
- PLANT HAVEN INC
- Inventor
- SNOEIJER WIM
Abstract
A new cultivar of Clematis named ‘Pretty in Blue’ that is characterized by upright violet-blue flowers in spring, summer and autumn, upright to decumbent habit, long blooming period, and medium-green foliage In combination, these traits set ‘Pretty in Blue’ apart from all other existing varieties of Clematis known to the inventor.
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 Clematis plant named ‘Pretty in Blue’ as described and illustrated.
Read the full patent: US Plant Patent PP14823 in full — the complete specification, every figure, and the file history.