US Plant Patent PP23889
Extrehotpink
Hibiscus plant named ‘Extrehotpink’
UNDER PATENT
Still under patent. Protection ends January 26, 2032.
Twenty years from the filing date would end on November 28, 2031. This patent earned 59 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP23889
- Filed
- November 28, 2011
- Granted
- September 10, 2013
- Expires
- January 26, 2032
- Inventor
- OOSTVEEN CORNELIS A
Abstract
A new and distinct cultivar of Hibiscus plant named ‘Extrehotpink’, characterized by its upright and somewhat outwardly spreading plant form; dark green-colored rounded leaves; freely flowering habit; large intense red purple-colored flowers with dark red-colored centers and darker red purple-colored venation; 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 ‘Extrehotpink’ as illustrated and described.
Read the full patent: US Plant Patent PP23889 in full — the complete specification, every figure, and the file history.