US Plant Patent PP4864
Red maple
PUBLIC DOMAIN
Patent expired July 23, 2000. 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
- PP4864
- Filed
- July 23, 1980
- Granted
- July 6, 1982
- Expires
- July 23, 2000
- Inventor
- JEFFERS GLENN C
No cultivar name of record
This patent does not name the plant. Through the 1980s and early 1990s that was still common: naming every new cultivar only became standard practice as plants began to be marketed under brand names. The grant identifies this one by its number and by a written description instead.
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
A new and distinct variety of red maple tree, characterized by its upward habit of growth and good crotch angles; rapid growth rate; tolerance to drought conditions; pleasing lettuce green summer leaf color and excellent scarlet fall leaf color that persists.
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 red maple tree, Acer rubrum, substantially as described and illustrated, characterized by its upward habit of growth and good crotch angles; rapid growth rate; tolerance to drought conditions; pleasing lettuce green summer leaf color and excellent scarlet fall leaf color that persists.
Read the full patent: US Plant Patent PP4864 in full — the complete specification, every figure, and the file history.