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...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 7895754 | Safety razors A safety razor blade unit mounted for pivotal movement relative to a razor handle is biased to a normal rest position by a magnetic return force generated by a pair of magnets that are so disposed that the return force increases as the pivotal displacement of the bl... | 03/01/2011 |
| 7578062 | Safety razors A safety razor blade unit mounted for pivotal movement relative to a razor handle is biased to a normal rest position by a magnetic return force generated by a pair of magnetic that are so disposed that the return force increases as the pivotal displacement of the b... | 08/25/2009 |
| 7200942 | Safety razor with pivot point shift from center to guard-bar under applied load A safety razor which features a pivot point that shifts from a center point pivot substantially on the shave plane, to a guard-bar pivot substantially on the shave plane, as shaving forces increase to help prevent nicks and cuts, and provide a smooth shave. ... | 04/10/2007 |
| 7197825 | Razors and shaving cartridges with guard A shaving blade unit includes a plastic housing having a front portion and a rear portion and two side surfaces extending from the front portion to the rear portion. The housing has a length extending from one side surface to the other side surface. Positioned betwe... | 04/03/2007 |
| 7194809 | Quick release blade and knife A knife blade having a cutting edge with a first end and a mounting edge opposite the cutting edge. Typically the first end will be a point, but other configurations are possible. In addition, the knife blade has a first attachment slot extending from the mounting e... | 03/27/2007 |
| 7178241 | Lubricating shaving assembly A shaving assembly includes a grippable body having an upper end, a lower end, and one or more side walls extending therebetween. The body includes a storage reservoir for holding a fluid shaving preparation. The storage reservoir is enclosed by the upper and lower ... | 02/20/2007 |
| 6421919 | Setting device The invention relates to a device for setting saw blades or belt-saw blades with clamping jaws arranged on both sides of the saw blade or belt-saw blade and with setting tools arranged on both sides and pivotable about an imaginary axis. It is the object ... | 07/23/2002 |
| 5551153 | Razor blade assembly A twin-blade assembly is formed from two blade steel members (A, B) shaped to have rear mounting legs (3A/B), spring arms (9A, 9B) at opposite ends of the unit, downturned legs (2A, 2B) for reinforcing the members and sharpened blade edges (1A, 1B) on bla... | 09/03/1996 |
| 4554735 | One-piece disposable razor A one-piece plastic disposable razor having structure which insures safe and efficient blade geometry while lending itself to high-speed mass production methods.... | 11/26/1985 |
| 4502216 | Safety razor provided with an articulated head A safety razor is provided with a handle at one end of which is rigidly connected a head. A pair of movable, facing hooks is disposed at the ends of the head, and the hooks are removably engageable within housings formed in a blade-holder base. The hooks ... | 03/05/1985 |
| 4403414 | Socket device for a pivotal razor A socket device for making a pivotal connection between a single or multiple blade cartridge and a support where a connection between the socket and the support is accomplished by interlocking arcuate flanges and a connection between the socket and a cart... | 09/13/1983 |
| 4378635 | Hair trimming device A hair trimming device for moustaches and eyebrows which has a replaceable blade. The blade is held between a pair of plates. The blade is curved to provide a perfect cut, and the plates are likewise curved. The plates are hinged and can be quickly swung ... | 04/05/1983 |
| 4184247 | Safety razor A safety razor comprising a handle portion, a platform portion molded integrally with the handle portion, and a cap portion molded integrally with the platform portion, a hinge portion interconnecting the platform portion and the cap portion, the cap port... | 01/22/1980 |
