US Plant Patent PP4137
Imperial Yellow
Chrysanthemum named Imperial Yellow
PUBLIC DOMAIN
Patent expired October 25, 1994. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on January 10, 1997, but this patent ends 808 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
- PP4137
- Filed
- January 10, 1977
- Granted
- October 25, 1977
- Expires
- October 25, 1994
- Inventor
- KASHIMA TAKAAKI PETER
Abstract
A new variety of chrysanthemum plant originated as a sport of the cultivar No. 2 Yellow Albatross and distinguished from its parent by its lighter flower color, larger flower size and more incurved flower form, longer form retention, and increased stem diameter and length.
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 variety of chrysanthemum plant, substantially as herein shown and described, characterized by the large size of its blooms and their light yellow coloration, the greater plant height and the increased size, strength and length of its stems.
Read the full patent: US Plant Patent PP4137 in full — the complete specification, every figure, and the file history.