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...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 8091313 | Drainage place for exterior wall product An apparatus and method for a drainage system of an exterior wall of a building comprising insulation having a rear face for contact with the exterior wall of the building and a drainage plane positioned on the rear face for removal of water from the exterior wall. | 01/10/2012 |
| 7272915 | Shingle and mat tensile strength with urea formaldehyde resin modifier A composite sheet, and a process of making the same, including cured modified urea formaldehyde reinforced by glass fibers. The modifier is an acrylonitrile-butadiene-styrene copolymer. A roofing shingle, formed by coating the composite sheet with filled asphalt, re... | 09/25/2007 |
| 6993876 | Asphalt roofing composite including adhesion modifier-treated glass fiber mat Enhanced tear strength asphalt roofing composites, e.g., roofing shingles which can meet the current ASTM D-3462 standard for tear strength, include an adhesion modifier treated, preferably a polysiloxane treated, glass fiber mat. ... | 02/07/2006 |
| 6959519 | Corrugated polymeric zigzag sheet for greenhouse roof structures A sheet structure includes a pair of corrugated sheets formed in a zigzag pattern, the pair comprising an upper sheet and a lower sheet. In an exemplary embodiment, each of the pair of corrugated sheets further includes a flat portion disposed at selected intervals ... | 11/01/2005 |
| 6955019 | Decorative wall covering with upward movement panel interlock system A wall covering comprising a plurality of plastic panels each having a body portion formed with rows of simulated building elements. The panels are mounted on a support surface with a lower marginal edge region of one panel overlying an upper marginal edge region of... | 10/18/2005 |
| 6851240 | Shingle tear strength with fiber mixture of different fibers A coated fiber mat of improved tear strength upon dividing pieces of the coated mat and the coating is provided. The coated mat is a cured, non-woven mat including a mixture of fibers having different fiber lengths. The fibers contain a polysiloxane compound and are... | 02/08/2005 |
| 6817152 | Fiber mats for materials of construction having improved tear strength and process for making same The invention relates to a coated fiber mat of improved tear strength upon dividing pieces of the coated mat and the coating which comprises a cured, non-woven, fiber glass mat containing a polysiloxane wherein the fibers are fixedly distributed in a formaldehyde ty... | 11/16/2004 |
| 6737369 | Cured non-woven mat of a mixture of fibers A coated fiber mat of improved tear strength upon dividing pieces of the coated mat and the coating is provided. The coated mat is a cured, non-woven mat including a mixture of fibers having different fiber lengths. The fibers contain a polysiloxane compound and are... | 05/18/2004 |
| 6544911 | Fiber mats for materials of construction having improved tear strength and process for making same The invention relates to a coated fiber mat of improved tear strength upon dividing pieces of the coated mat and the coating which comprises a cured, non-woven, fiber glass mat containing a polysiloxane wherein the fibers are fixedly distributed in a form... | 04/08/2003 |
| 5857292 | Roof support apparatus A corrugated roof support apparatus supportable by underlying support structure is disclosed. A corrugated support substantially aligns with a structural corrugation in a roof panel overlaying the corrugated support. The corrugated support comprises corru... | 01/12/1999 |
| 5613337 | Metal shingle with gutter and interlocking edges A shingle is formed with a first, or trailing, side edge folded over toward the top surface of the shingle to catch moisture and direct it down to the top surface of the next lower shingle. A second, or leading, side edge of the shingle is not folded. An ... | 03/25/1997 |
| 5502940 | Composite building element and methods of making and using the same A composite roofing element comprises a first layer of aggregate based material, a second layer of material having a density less than that of the first layer and has a wedge shaped region depending from its underside. The wedge shaped region is preferabl... | 04/02/1996 |
| 5443878 | Composite weatherboard A composite weatherboard having a timber member and a metal exterior sheath. The sheath is extruded with longitudinal projections which are fitted and pressed into permanent engagement with corresponding grooves or tongues provided in the timber member th... | 08/22/1995 |
| 4747249 | Subpurlin and attachment assembly A subpurlin (10) is provided for a building assembly having a plurality of overhead structural members (50), an insulating layer (62) and a plurality of overlapping roof panels (56). The subpurlins (10) support and space the roof panels (56) without compr... | 05/31/1988 |
| 4683697 | Roofing tiles A roofing tile of malleable sheet material includes flat rectangular panels and V-shaped inverted ridges along each side edge of each panel. An outwardly and downwardly sloping first marginal panel is contiguous with one end edge, and an outwardly and upw... | 08/04/1987 |
| 4665675 | Non-wicking siding Clapboard siding has a channel rabbeted at the back bottom edge to prevent wicking of rainwater between clapboards, and has a plurality of vertical vent channels or grooves cut in the back surface so that air can vent into the space between the structure ... | 05/19/1987 |
| 4651491 | Roofing systems A roofing system includes a weathering member (1) which underlies a ventilating tile (10) having a venilation opening (11). The member (1) includes an aperture (4) which permits air flowing through the tile opening (11) to reach the roof space, the apertu... | 03/24/1987 |
| 4404784 | Antisiphon lap joint for building sheets A building sheet suitable for roofing and siding provides a weatherproof lap joint having an antisiphon gap when installed partially overlapping an adjacent like building sheet by spacing the entire overlapping portion of one sheet above the lapped portio... | 09/20/1983 |
| 4107896 | Shingle-type wall panel A panel made of sheet metal, synthetic resin, or the like and adapted to be mounted shingle-fashion with a plurality of other such panels to an upright wall is of generally rectangular shape with upper and lower end edges and lateral side edges. Between t... | 08/22/1978 |
| 3990206 | Building sheet A building sheet suitable for roofing and siding use that accommodates fastening along ribs or valleys of a side lapped juncture between two sheets. Strengthening ribs formed from bends in the sheet are shaped to promote stacking, to consume little of the... | 11/09/1976 |
| 3977141 | Metal shake or shingle panel and accessories A panel structure comprised of a plurality of side-by-side segments formed to present the configuration and aesthetics of hand-split wooden shakes for a building roof and/or wall, and trimming and finishing accessories therefor similarly formed to simulat... | 08/31/1976 |
