Grass trimming device
Patent 4037323 Issued on July 26, 1977. Estimated Expiration Date: 
July 26, 1994. 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.
July 26, 1994. 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 References 1766270 2556790 2645010 2699605 2832184 2883746 3050854 InventorApplicationNo. 05/682516 filed on 05/03/1976US Classes:30/206, With motor30/207With blade-tension meansExaminersPrimary: Smith, Al LawrenceAssistant: Peters, G. O. Attorney, Agent or FirmAbstractThe trimming device has a blade driven by a shaft to have each end pass over cutting teeth at the forward edge of a circular cutting plate. The drive mechanism may be a belt or a gear train driven by a motor which is mounted on a frame to which a top and bottom plate is secured. A housing encloses the drive mechanism having a handle containing a switch and a receptacle for the prongs on a plug-in cord. | |
