US Plant Patent PP28584
Chrishaven1
Parrotia tree named ‘Chrishaven1’
UNDER PATENT
Still under patent. Protection ends April 12, 2036.
Twenty years from the filing date would end on December 22, 2035. This patent earned 112 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP28584
- Filed
- December 22, 2015
- Granted
- October 31, 2017
- Expires
- April 12, 2036
- Assignee
- CHRISTIANSON KENNETH G
- Inventor
- CHRISTIANSON KENNETH G
Abstract
A new cultivar of Parrotia tree, ‘Chrishaven1’, that is characterized by its upright and columnar plant habit, its foliage that turns deep yellow in color (with apricot-red markings) in the fall, its strong angled branches that withstand wind and snow, its strong apical dominance, and its ability to be readily propagated from stem cuttings.
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 Parrotia tree named ‘Chrishaven1’ substantially as herein illustrated and described.
Read the full patent: US Plant Patent PP28584 in full — the complete specification, every figure, and the file history.