US Plant Patent PP26417
Extrmag
Hibiscus plant named ‘Extrmag’
UNDER PATENT
Still under patent. Protection ends June 28, 2034.
Twenty years from the filing date would end on November 15, 2033. This patent earned 225 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP26417
- Filed
- November 15, 2013
- Granted
- February 16, 2016
- Expires
- June 28, 2034
- Inventor
- OOSTVEEN CORNELIS A
Abstract
A new and distinct cultivar of Hibiscus plant named ‘Extrmag’, characterized by its upright and somewhat outwardly spreading plant form; freely branching habit; freely flowering habit; large magenta-colored flowers; and good flower longevity.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
It is claimed: 1. A new and distinct Hibiscus plant named ‘Extrmag’ as illustrated and described.
Read the full patent: US Plant Patent PP26417 in full — the complete specification, every figure, and the file history.