US Plant Patent PP4465
Rugby
Kentucky bluegrass plant
PUBLIC DOMAIN
Patent expired June 22, 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
- PP4465
- Filed
- June 22, 1978
- Granted
- October 23, 1979
- Expires
- June 22, 1998
- Assignee
- KAERWER HOWARD E
- Inventor
- KAERWER HOWARD E
Abstract
{PG,1 A Kentucky bluegrass plant which exhibits high turf quality, even when grown under low to moderate nitrogen fertility levels and restricted moisture. The plant has a medium dark green color, a medium leaf texture, high tiller density, rapid greening in the spring, good fall color retention, excellent low mowing tolerance, a vigorous and spreading growth habit, rapid seed germination and vigorous establishment, sustained turf quality through entire season, high resistance to common turf grass diseases, and a sustained high seed yield when managed for seed production.
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 cultivar of Kentucky bluegrass plant, substantially as illustrated and described herein, which is characterized by producing turf of high quality even when grown under low to moderate nitrogen fertility levels and restricted moisture, a medium dark green color, a medium leaf texture, high tiller density, rapid greening in the spring, good fall color retention, excellent low mowing tolerance, a vigorous and spreading growth habit, rapid seed germination and vigorous establishment, sustained turf quality through entire season, high resistance to common turf grass diseases, and a sustained high seed yield when managed for seed production.
Read the full patent: US Plant Patent PP4465 in full — the complete specification, every figure, and the file history.