US Plant Patent PP21608
MON1
Lacebark elm tree named ‘MON1’
UNDER PATENT
Still under patent. Protection ends August 8, 2029.
Twenty years from the filing date would end on August 3, 2029. This patent earned 5 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP21608
- Filed
- August 3, 2009
- Granted
- January 4, 2011
- Expires
- August 8, 2029
- Assignee
- KAZIMIER KENNETH K
- Inventor
- KAZIMIER KENNETH K
Abstract
A new cultivar of Ulmus parvifolia , ‘MON1’, characterized by its uniform upright plant habit developing to an oval form at maturity and its hardiness at least to U.S.D.A. Zone 4b.
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 lacebark elm tree named ‘MON1’ as herein illustrated and described.
Read the full patent: US Plant Patent PP21608 in full — the complete specification, every figure, and the file history.