US Plant Patent PP27278
JefUM
Acer ginnala tree named ‘JefUM’
UNDER PATENT
Still under patent. Protection ends November 30, 2034.
Twenty years from the filing date would end on October 14, 2034. This patent earned 47 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP27278
- Filed
- October 14, 2014
- Granted
- October 18, 2016
- Expires
- November 30, 2034
- Assignee
- UNIV MANITOBA
- Inventor
- REMPHREY WILLIAM R
Abstract
A new cultivar of Acer ginnala , ‘JefUM’, that is characterized by its clump forming plant habit with 3 to 4 stem clumps consistently maintained, its fall foliage that is red-purple in color, its clean and disease-free three-lobed foliage, and its resistance to iron chlorosis when grown in alkaline soils.
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 cultivar of Acer ginnala tree named ‘JefUM’ as herein illustrated and described.
Read the full patent: US Plant Patent PP27278 in full — the complete specification, every figure, and the file history.