Irrigation means and method
Patent 4330222 Issued on May 18, 1982. Estimated Expiration Date: 
April 17, 2000. 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.
April 17, 2000. 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 ReferencesInventorApplicationNo. 06/141108 filed on 04/17/1980US Classes:405/48, Open seam or shielded outlet405/43Porous or apertured pipe, flume, or tilewayExaminersPrimary: Corbin, David H.Attorney, Agent or FirmInternational ClassesA01G 25/06 (20060101)A01G 25/00 (20060101) Foreign Application Priority Data1979-04-19 AUAbstractAn underground watering system having a water distribution pipe and at least one strainer box over the water distribution pipe, the strainer box containing gravel or other particulate matrial, and the distribution pipe having a water emitting aperture which is located within the strainer box, so that water is discharged into the particulate material. | |
