US Plant Patent PP8730
Wideleaf
Elm tree variety named Wideleaf
PUBLIC DOMAIN
Patent expired March 22, 2013. 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
- PP8730
- Filed
- March 22, 1993
- Granted
- May 17, 1994
- Expires
- March 22, 2013
- Assignee
- SMITH RAYMOND H
- Inventor
- SMITH RAYMOND H
Abstract
A new and distinct hybrid elm selection, believed to be from a genetic background of Ulmus americana×U. pumila, which is characterized by extremely high vigor as compared to other elm trees of the same age. This tree is further characterized by having leaves which are larger, thicker, highly doubly serrate, and more symmetrical than those of comparison trees of comparison or parental species. The leaves of this tree have midrib and veins which are inserted below the top surface and protrude from the bottom surfaces of leaves, and are larger than those of other species. It seems the extra thickness of the upper surface of the leaves of this tree with the larger vein structure beneath causes the leaf surface to become curved in a retrorse curve, with the center portion of the blade being higher, and the outer portion curved slightly downward. The blade turned with the lower side up becomes dish shaped and will hold water in the center. As the leaf matures, it take on various shaped curves over the veins outward from the center, which, as the leaf hardens in late summer, become a wavy fringe along the side.
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 Elm tree, substantially as described and illustrated.
Read the full patent: US Plant Patent PP8730 in full — the complete specification, every figure, and the file history.