US Plant Patent PP21558
Winter Dawn
‘Winter Dawn’ strawberry plant
UNDER PATENT
Still under patent. Protection ends October 7, 2029.
Twenty years from the filing date would end on June 13, 2025. This patent earned 1,577 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP21558
- Filed
- June 13, 2005
- Granted
- December 7, 2010
- Expires
- October 7, 2029
- Inventor
- CHANDLER CRAIG K
Abstract
A new and distinct variety of strawberry ( Fragaria×ananassa ), which originated from seed produced by a hand-pollinated cross between FL 93-103 and FL 95-316. The new strawberry, named ‘Winter Dawn’, is distinguished by high November through February production of fruit that are medium to large in size and moderately resistant to Botrytis and anthracnose fruit rot diseases when grown in Dover, Fla. or other areas that have a subtropical climate similar to that of Dover.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct strawberry plant as illustrated and described, characterized by 1) moderate resistance to Colletotrichum crown rot and Botrytis and anthracnose fruit rot diseases, and 2) high November through February production of medium to large fruit, when grown in the Dover/Plant City are of Fla.
Read the full patent: US Plant Patent PP21558 in full — the complete specification, every figure, and the file history.