US Plant Patent PP21793
Bokrafour
Weigela plant named ‘Bokrafour’
UNDER PATENT
Still under patent. Protection ends October 28, 2029.
Twenty years from the filing date would end on October 23, 2029. This patent earned 5 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP21793
- Filed
- October 23, 2009
- Granted
- March 22, 2011
- Expires
- October 28, 2029
- Assignee
- KRAAN KEES JAN
- Inventor
- KRAAN KEES JAN
Abstract
A new cultivar of Weigela florida , ‘Bokrafour’, characterized by its green foliage, its compact plant habit, and its abundantly produced red-purple flowers.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct cultivar of Weigela plant named ‘Bokrafour’ as herein illustrated and described.
Read the full patent: US Plant Patent PP21793 in full — the complete specification, every figure, and the file history.