US Plant Patent PP24436
CA 33
Rose plant named ‘CA 33’
UNDER PATENT
Still under patent. Protection ends November 30, 2032.
Twenty years from the filing date would end on August 29, 2032. This patent earned 93 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP24436
- Filed
- August 29, 2012
- Granted
- May 13, 2014
- Expires
- November 30, 2032
- Assignee
- HER MAJESTY THE QUEEN IN RIGHT OF CANADA AS REPRESENTED BY THE MINISTER OF AGRICULTURE AND AGRI FOOD, DAVIDSON CAMPBELL G, DYCK LARRY J
- Inventor
- DAVIDSON CAMPBELL G; DYCK LARRY J
Abstract
A new cultivar of shrub rose, ‘CA 33’, characterized by its semi-double flowers that are golden yellow in color with a salmon orange blush, its semi-upright plant form, its repeat blooming habit, its satiny foliage with good tolerance to rust and black spot, and its cold hardiness at least to U.S.D.A. Zone 3a.
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 rose plant named ‘CA 33’ as herein illustrated and described.
Read the full patent: US Plant Patent PP24436 in full — the complete specification, every figure, and the file history.