Method for producing sod
Patent 5177898 Issued on January 12, 1993. Estimated Expiration Date: 
October 1, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 1, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesPre-grown lawn turf product and method of growing Patent #: 4716679 InventorApplicationNo. 590692 filed on 10/01/1990US Classes:47/56, SEED TAPE OR MAT, METHOD OR APPARATUS47/9MULCHINGExaminersPrimary: Scherbel, David A.Assistant: Van Patten, Michele A. Attorney, Agent or FirmInternational ClassA01C 001/04AbstractA novel method is described for growing tall fescue sods on a solid base in large rolls. Whole culm straw is placed 1-2 inches deep over the solid base, typically plastic sheeting. Thirty to forty cubic yards of composted materials are then applied to the straw, filling the voids and interstices to produce a coherent matrix. This is seeded with tall fescue, then irrigated, fertilized, and mowed in a conventional manner. Unharvested wheat seed left in the straw germinates along with the tall fescue and forms a vigorous primary rooting system which rapidly effects a bona fide sod about one-half inch thick and approximately one-half the weight of a conventional mineral sod. The synthetic sod is harvested in large rolls, typically as much as five feet wide and comprising 20-50 square yards. These big rolls are laid at the installation site by the grading tractor, obviating the need for a fork lift, pallets, and laying crew, as used in conventional sodding.Other References
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