Roofing tile
Patent 4914885 Issued on April 10, 1990. Estimated Expiration Date: 
August 29, 2008. 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.
August 29, 2008. 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 ReferencesInventorsAssigneeApplicationNo. 237958 filed on 08/29/1988US Classes:52/520, Fastener or anchor at juncture52/533, Joint with fluid-handling feature52/541, Rabbet52/542, Perpendicularly directed flange52/547, Edge-embracing52/549Facing clamped to substructure by discrete external memberExaminersPrimary: Scherbel, David A.Assistant: Van Patten, Michele A. Attorney, Agent or FirmInternational ClassE04D 001/00AbstractAn improved roofing tile with side flanges, one overlying and one underlying, providing an interlock between adjacent tiles. The flanges have two ridges and two grooves each. The inner ridge of the underlying flange is higher than the outer ridge thereof, and the outer groove of the overlying flange is deeper than the inner groove thereof. Optionally a cutout is provided on the overlying flange permitting a tile to be held with a hurricane clip on the underlying flange. Optionally a cavity is provided on the bottom face toward the lower edge to prevent a tile coming in contact with nails driven through tiles in a lower course.Field of SearchJoint with fluid-handling featurePlural offset portions Face-to-face tongue and groove; e.g., dado Plural opposed flanges Tongue and groove Fastener or anchor at juncture LAPPED MULTIPLANAR SURFACING; E.G., SHINGLE TYPE Rabbet Perpendicularly directed flange Edge-embracing Facing clamped to substructure by discrete external member | |
