US Plant Patent PP15439
PS-1764
Raspberry plant named ‘PS-1764’
PUBLIC DOMAIN
Patent expired September 2, 2023. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on July 9, 2023. This patent earned 55 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP15439
- Filed
- July 9, 2003
- Granted
- December 21, 2004
- Expires
- September 2, 2023
- Assignee
- PLANT SCIENCES INC, BERRY R & D INC
- Inventor
- ACKERMAN STEPHEN M
Abstract
This invention relates to a new and distinct everbearing variety of raspberry plant named ‘PS-1764’. The new variety is primarily adapted to the growing conditions of the central coast of California and is characterized by the following. Fruit that is very large in size, light in color, glossy with very large druplets. Fall fruit production that begins late with low July-August yields. Primocanes are medium to long in length, large in diameter, medium to light green in color producing very little to no waxy coat and little to no anthocyanins. Thorns are strong and stout in texture with little to no reddish color on the tip.
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 raspberry plant as herein described and illustrated by the characteristics set forth above.
Read the full patent: US Plant Patent PP15439 in full — the complete specification, every figure, and the file history.