Canada - Patent No: 1336 on 6 Jan 2003
Application No: 95-684 on 22 Dec 1995
Rights surrendered on April 18, 2013.
Breeder: Raymond J. Evison, Raymond J. Evison, Ltd., Channel Islands, United Kingdom
'Evifour' originated from a polycross made at Guernsey Clematis Nursery, Guernsey, U.K
United Kingdom - Patent No: xxx
Plant Breeder's Rights
United States - Patent No: PP 9,299 on 26 Sep 1995
VIEW USPTO PATENTApplication No: 08/331,039 on 28 Oct 1994
It was discovered as a seedling in a controlled planting of cultivated plants in St. Sampsons Parish, Guernsey, Channel Islands, Great Britain, and its parents are not known.