US Plant Patent PP8683
Cathedral
Elm tree named "Cathedral"
PUBLIC DOMAIN
Patent expired March 26, 2012. 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
- PP8683
- Filed
- March 26, 1992
- Granted
- April 12, 1994
- Expires
- March 26, 2012
- Assignee
- WISCONSIN ALUMNI RES FOUND
- Inventor
- SMALLEY EUGENE; LESTER DONALD T
Abstract
A new and distinct variety of elm tree which is characterized by its resistance to Dutch elm disease caused by Ophiostoma ulmi (Buisman) Nannf. Trees of this variety are also highly tolerant to Verticillium wilt disease, limited susceptibility to black leaf spot disease, and good resistance of traumatic injury from climatic elements.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
What is claimed is: 1. A new and distinct variety of elm tree named "Cathedral" substantially as described and illustrated herein.
Read the full patent: US Plant Patent PP8683 in full — the complete specification, every figure, and the file history.