US Plant Patent PP4315
Pear tree
PUBLIC DOMAIN
Patent expired January 16, 1998. 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
- PP4315
- Filed
- January 16, 1978
- Granted
- October 10, 1978
- Expires
- January 16, 1998
- Assignee
- HIGHCROFT ORCHARDS
- Inventor
- LOWRY DAVID B
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
A large, vigorous, upright, tall, vase-formed, rapid growing, hardy pear tree which is foliated with large, obovate, abruptly pointed leaves having a crenate, coarsely serrate margin and a medium length petiole, blooms with pink-white fertile flowers, and a regular and very productive bearer of large to medium size, uniform, obovate, symmetrical fruit--of excellent dessert quality--having a thick, smooth, waxen, glossy skin; the skin having a yellow ground color substantially overspread, in maturity of ripening, with a burgundy red, and the flesh being distinctly white.
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 pear tree, substantially as illustrated and described, which is large, vigorous, upright, tall, vase-formed, rapid growing, hardy, foliated with large, obovate, abruptly pointed leaves having a crenate, coarsely serrate margin and a medium length petiole, blooms with pink-white, fertile flowers, and a regular and very productive bearer of large to medium size, uniform, obovate, symmetrical fruit --of excellent dessert quality--having a thick, smooth, waxen, glossy skin; the skin having a yellow ground color substantially overspread, in maturity of ripening, with a Burgundy red, and the flesh being distinctly white; and the fruit, in comparison to the Bartlett, being shorter and pyriform with a slightly flattened base, the red of the skin being more uniform about the fruit, and the distinctly white flesh being subacid whereas the flesh of the Bartlett is yellowish-white and sweet.
Read the full patent: US Plant Patent PP4315 in full — the complete specification, every figure, and the file history.