US Plant Patent PP4873
Grape vine
PUBLIC DOMAIN
Patent expired December 12, 2000. 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
- PP4873
- Filed
- December 12, 1980
- Granted
- August 10, 1982
- Expires
- December 12, 2000
- Inventor
- CORRIN ALLAN A
No cultivar name of record
This patent does not name the plant. Through the 1980s and early 1990s that was still common: naming every new cultivar only became standard practice as plants began to be marketed under brand names. The grant identifies this one by its number and by a written description instead.
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 grape vine which bears fruit resembling that of the Thompson Seedless grape vine (unpatented), which it most nearly resembles, but distinguished by bearing berries of large size in shatter-resistant bunches without girdling the vines or the application of gibberellin, by superior storing and shipping characteristics, and by maturing about 30 days later than fruit of the Thompson Seedless variety.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
Having thus described and illustrated my new variety of grape vine, what is new and desired to be secured by Letters Patent is: 1. A new and distinct variety of grape vine, substantially as illustrated and described, characterized by its general resemblance to the Thompson Seedless grape vine (unpatented) in bearing elongated, seedless, light green berries, but being distinguished therefrom and characterized as to novelty by having leaves wherein the petiole sinus of each leaf is not closed by the adjacent lobes thereof and by bearing berries having a more blunt apical end; the fruit of the new variety, in comparison with fruit of the Thompson Seedless variety, maturing about 30 days later, retaining a desirable color in cold storage for a substantially longer period of time, having a tougher skin, and being superior in seedless quality, the clusters borne by the new variety being resistant to "shatter" and the berries thereof being of large size without girdling or application of gibberellin or other growth regulator, the shatter-resistance of the bunches and the size of the berries borne by the new variety without girdling or such application being equal to said bunch and berry characteristics of the Thompson Seedless variety with girdling and/or such application.
Read the full patent: US Plant Patent PP4873 in full — the complete specification, every figure, and the file history.