US Plant Patent PP4252
Topaz
Chrysanthemum plant named Topaz
PUBLIC DOMAIN
Patent expired May 16, 1995. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on May 9, 1997, but this patent ends 724 days earlier — a terminal disclaimer gives term back. A source that calculates twenty years from filing would tell you this plant is still protected when it is already free.
The record
- Patent number
- PP4252
- Filed
- May 9, 1977
- Granted
- May 16, 1978
- Expires
- May 16, 1995
- Assignee
- PAN AMERICAN PLANT CO
- Inventor
- PETUSKY KERRY S
Abstract
A new and distinct variety of chrysanthemum plant of the standard type for greenhouse culture for the production of cut flowers, characterized by its very large blooms which have a greyed orange to dark Naples yellow color when flowered under cool to moderate temperatures and a bright green-yellow color when flowered under high temperatures. This plant has a vigorous growth habit, excellent bench and cut flower life, and a high tolerance to high soluble salt conditions.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
I claim: 1. A new chrysanthemum cultivar, substantially as herein shown and described, characterized by its very large flower size, its uniform 9-week year around response, and its tolerance to high soluble salt conditions.
Read the full patent: US Plant Patent PP4252 in full — the complete specification, every figure, and the file history.