US Plant Patent PP25981
PA4UNIBO
Cherry tree named ‘PA4UNIBO’
UNDER PATENT
Still under patent. Protection ends October 4, 2033.
Twenty years from the filing date would end on May 28, 2033. This patent earned 129 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP25981
- Filed
- May 28, 2013
- Granted
- October 13, 2015
- Expires
- October 4, 2033
- Inventor
- LUGLI STEFANO; CORREALE RICCARDO; GRANDI MICHELANGELO
Abstract
Prunus avium ‘PA4UNIBO’ is a novel cherry tree derived from a seedling of unknown cross which was planted at Vignola, Modena Province, Italy. It was initially propagated by grafting to root stocks of varying vigor and, after testing in districts and plantings of differing types, proved to have the qualities proper to a promising new cultivar for the market.
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 cherry tree as herein described and illustrated.
Read the full patent: US Plant Patent PP25981 in full — the complete specification, every figure, and the file history.