US Plant Patent PP15918
Bontrosai
Pelargonium plant named ‘Bontrosai’
PUBLIC DOMAIN
Patent expired September 8, 2024. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on September 1, 2024. This patent earned 7 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP15918
- Filed
- September 1, 2004
- Granted
- August 9, 2005
- Expires
- September 8, 2024
- Assignee
- PEDRO PLANT
- Inventor
- BOEKESTIJN-VERMEER KLAZINA
Abstract
A new and distinct cultivar of Pelargonium plant named ‘Bontrosai’, characterized by its upright, columnar and compact growth habit; leaves arranged spirally and positioned perpendicular to the stem; leaves roughly palmate, deeply lobed, reflexed, globular in shape and citron-scented.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct cultivar of Pelargonium plant named ‘Bontrosai’, as herein illustrated and described.
Read the full patent: US Plant Patent PP15918 in full — the complete specification, every figure, and the file history.