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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 6116836 | Connector for composite insulated wall and method for making the wall An insulated wall includes first and second spaced apart layers of concrete having a layer of insulating material sandwiched therebetween. Extending through the insulative layer are a plurality of spike connectors having their opposite ends protruding int... | 09/12/2000 |
| 6089808 | Angled chisel point brad and method therefor An obliquely collated strip of brads useable in an angled magazine of a fastener driving tool, each brad having a head on one end and a point on an opposite end, the point of each brad of the collated strip of brads having a tip defined by converging firs... | 07/18/2000 |
| 5704751 | V-nail fastener A V-nail fastener has a leading edge that is partially formed with asymmetric sharpening, limited substantially to the central sections. Flange elements extend generally perpendicularly to the panel elements of which the central (V-shaped) portion is cons... | 01/06/1998 |
| 5391029 | Fastening nail A nail having an elongate shank, a head at one end of the shank and a tip portion at the other end. A lateral step is formed in the shank at a location spaced from both the head and the tip so as to divide the shank into a relatively small diameter penetr... | 02/21/1995 |
| 4927309 | Wire nail A wire nail having a shank, a head formed on one end of the shank, and a point formed on the other end. The point has a penetrating portion, a wedging portion, and a transitional portion. The wedging portion defines four straight edges, each being incline... | 05/22/1990 |
| 4823978 | Plastic hole plug with self-piercing point A plastic resin hole plug to fill a hole in a flat thin panel comprises a one-piece unitary injection-molded plastic member having a top closure wall whose bottom surface has a flat edge which rests on the panel. In one embodiment the plug has a cruciform... | 04/25/1989 |
| 4697945 | Binder for sheet material An improved binder for sheet material. The binder includes a cover or backing member formed of paperboard or plastic, and a pair of hinge assemblies are attached to the inner surface of the cover. A standard binding mechanism is interconnected between the... | 10/06/1987 |
| 4456416 | Anchor nail fastener having chisel point The end of the nail guide and deflector tube of an anchor nail fastener is flattened to form a chisel point. The chisel point is oriented with respect to the nail exit side aperture of the tube to provide the most effective relationship between the latera... | 06/26/1984 |
| 4122752 | Flat fastener for driving into metallic material A fastener apparatus which can be formed by conventional punch press machinery and which is hardened so that the fastener may be driven into metallic structures such as structural steel beams and the like using a conventional hammer or a power operated na... | 10/31/1978 |
| 4058048 | Clinchnail A clinchnail having an elongated shank with a head at one end and a tip portion at the other end thereof, wherein the shank is of essentially constant cross-sectional configuration throughout its length and the tip portion has a cross-sectional configurat... | 11/15/1977 |
