US Plant Patent PP6646
Primadonna
African violet plant named Primadonna
PUBLIC DOMAIN
Patent expired August 13, 2007. This plant is in the public domain — anyone may propagate and sell it.
No term adjustment or disclaimer is recorded against this patent, so this is the full statutory term — twenty years from the filing date.
The record
- Patent number
- PP6646
- Filed
- August 13, 1987
- Granted
- March 7, 1989
- Expires
- August 13, 2007
Abstract
A cultivar of African violet named Primadonna, characterized by its large purple flowers with ruffled white margins; compact growth habit, large dark green leaves, and floriferous habit.
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 African violet named Primadonna, as illustrated and described, and particularly characterized by its large purple flowers with ruffled white margins; compact growth habit, large dark green leaves, and floriferous habit.
Read the full patent: US Plant Patent PP6646 in full — the complete specification, every figure, and the file history.