US Plant Patent PP4066
Kalanchoe plant
PUBLIC DOMAIN
Patent expired June 28, 1994. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on June 7, 1996, but this patent ends 710 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
- PP4066
- Filed
- June 7, 1976
- Granted
- June 28, 1977
- Expires
- June 28, 1994
- Inventor
- IRWIN LAWRENCE T
No cultivar name of record
This patent does not name the plant, and for its era that is ordinary rather than an omission. Before about 1980, breeders frequently patented a plant without giving it a cultivar name at all — the grant identified it by its number, its parentage and a written description of the flower and foliage. Most plant patents from the 1930s to the 1970s have no name in them.
Nothing here is missing from our records: the patent itself states no name. Where one exists we show it, and we do not invent one.
Abstract
1. A new and distinct variety of Kalanchoe plant, substantially as herein shown and described, characterized particularly as to novelty by the unique combination of its orange red color with a distinctive yellow eye; medium large sized flexible foilage of fern green color; its tall habit of from 16 inches to 20 inches in height; the profusion of flowers carried on sturdy stems 6 inches above the foliage; and its adaptability to year round flowering by photoperiod manipulation.
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 Kalanchoe plant, substantially as herein shown and described, characterized particularly as to novelty by the unique combination of its orange red color with a distinctive yellow eye; medium large sized flexible foliage of fern green color; its tall habit of from 16 inches to 20 inches in height; the profusion of flowers carried on sturdy stems 6 inches above the foliage; and its adaptability to year round flowering by photoperiod manipulation.
Read the full patent: US Plant Patent PP4066 in full — the complete specification, every figure, and the file history.