US Plant Patent PP4394
Plum tree
PUBLIC DOMAIN
Patent expired October 3, 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
- PP4394
- Filed
- October 3, 1977
- Granted
- March 13, 1979
- Expires
- October 3, 1997
- Inventor
- ZAIGER CHRIS F
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 variety relates to a plum tree which is of medium to large size, medium dense, vigorous and upright in growth; and is a productive and regular bearer of medium to large, early ripening, firm yellow flesh, clingstone fruit having a red (9-C-8 to 10-D-8) skin color.
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 plum tree, as illustrated and described, which is a regular and productive bearer of medium to large, firm, clingstone fruit, having yellow flesh and a red skin color; characterized, in comparison to the Red Beaut, (U.S. Plant Pat. No. 2,539); by fruit which ripens 2 to 3 days earlier, is of slightly larger in size, is clingstone instead of freestone, has yellow flesh color instead of red flesh color.
Read the full patent: US Plant Patent PP4394 in full — the complete specification, every figure, and the file history.