US Plant Patent PP28963
PKM04
Campanula plant named ‘PKM04’
UNDER PATENT
Still under patent. Protection ends December 16, 2035.
Twenty years from the filing date would end on November 2, 2035. This patent earned 44 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP28963
- Filed
- November 2, 2015
- Granted
- February 13, 2018
- Expires
- December 16, 2035
- Assignee
- GARTNERIET PKM AS
- Inventor
- MADSEN CHRISTIAN HALD
Abstract
A distinct cultivar of Campanula plant named ‘PKM04’ characterized by its upright, freely branching and compact growth habit and bicolored (white/violet) broad campanulate flowers.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
I claim: 1. A new and distinct cultivar of Campanula hybrid plant named ‘PKM04’, as illustrated and described herein.
Read the full patent: US Plant Patent PP28963 in full — the complete specification, every figure, and the file history.