US Plant Patent PP4203
Preamble
Impatiens plant
PUBLIC DOMAIN
Patent expired January 31, 1995. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on January 31, 1997, but this patent ends 731 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
- PP4203
- Filed
- January 31, 1977
- Granted
- January 31, 1978
- Expires
- January 31, 1995
- Assignee
- MIKKELSENS INC
- Inventor
- MIKKELSEN JAMES C
Abstract
A novel impatiens variety having rose pink blossoms, which variety has excellent durability when grown outdoors.
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 Impatiens known by the cultivar name Preamble and particularly characterized as to uniqueness by the combined characteristic of narrow, long and variegated foliage; rose pink flower color; symmetrically round flower shape, with each flower petal being nearly the same size; superior durability; produces substantial side growth thereby permitting adequate cuttings to be taken for commercial production, and by its general plant growth which is ideal for pot plant culture.
Read the full patent: US Plant Patent PP4203 in full — the complete specification, every figure, and the file history.