US Plant Patent PP4392
Maple tree
PUBLIC DOMAIN
Patent expired December 20, 1997. 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
- PP4392
- Filed
- December 20, 1977
- Granted
- March 6, 1979
- Expires
- December 20, 1997
- Inventor
- SCHMIDT III J FRANK
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
This invention relates to a novel variety of Hedge Maple, distinguished by its upright branches and rapid initial rate of growth.
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 maple tree substantially as herein shown and described, characterized particularly as to novelty by its upright branches and rapid initial rate of growth.
Read the full patent: US Plant Patent PP4392 in full — the complete specification, every figure, and the file history.