US Plant Patent PP31183
COSEH 4900
Helleborus plant named ‘COSEH 4900’
UNDER PATENT
Still under patent. Protection ends November 15, 2038.
No term adjustment or disclaimer is recorded against this patent, so this is the full statutory term — twenty years from the filing date.

The record
- Patent number
- PP31183
- Filed
- November 15, 2018
- Granted
- December 3, 2019
- Expires
- November 15, 2038
- Assignee
- HEUGER JOSEF
- Inventor
- HEUGER JOSEF
Abstract
A new and distinct cultivar of Helleborus plant named ‘COSEH 4900’, characterized by its upright and mounded plant habit; moderately vigorous growth habit; dark green-colored leaves; moderately freely flowering habit; single dark greyed purple-colored flowers; and good garden performance.
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 Helleborus plant named ‘COSEH 4900’ as illustrated and described.
Read the full patent: US Plant Patent PP31183 in full — the complete specification, every figure, and the file history.