Famous Patents
Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7241067 | Ring mechanism having blunt ends A ring mechanism for a loose-leaf binder comprises a thin, elongate plate and at least two ring members supported by the elongate plate. The ring members move between an open position for receiving and removing loose-leaf pages and a closed position for capturing th... | 07/10/2007 |
| 6328497 | Ring mechanism for a binder having a plastic top section A ring for mounting on a carrier mechanism of a binder is disclosed. The ring includes a first ring element and a second ring element. The first ring element includes a first ring element bottom section, which is connected to the carrier mechanism, and a ... | 12/11/2001 |
| 6196749 | Loose-leaf binder A binder for releasably retaining loose-leaves. The binder has a front cover that lies flatly beneath its back cover when the binder is open 360 degrees. The rings of the binder can rotate around an edge of the flatly-folded cover to enable loose-leaves t... | 03/06/2001 |
| 6062760 | Modular binder ring construction A modular binder ring unit (16) used in a ring binder (10) comprises a plurality of modules including a binder ring module (18). The modules are spaced along the length of the unit. A plurality of spacer modules (22, 24, 30) attach to the ring modules. Th... | 05/16/2000 |
| 5971649 | Ring binder mechanism A ring binder mechanism adapted to be secured to a cover is disclosed as including a substantially rigid upper curved housing supporting a pair of plates to which three pairs of half-ring members are mounted, and a pair of rivets for engagement with the c... | 10/26/1999 |
| 5957611 | Ring binder with dual angle ring metal A ring binder (10) holding sheets (S) of paper (P) has a dual angle ring metal (100). The ring metal includes a pair of leaves (102, 104) hingedly connected to each other for relative movement between them. Binder rings (114, 116, 118) each include a pair... | 09/28/1999 |
| 4854763 | Device for the impaling of loose leaves A device for impaling loose leaves, such as a loose leaf binder (1) comprising two or more holding means (14) provided with for example rings or gripping fingers (10) fastened to one or more guide or guide members (5, 15). The holding means (14) of the de... | 08/08/1989 |
| 4772149 | Sheet binder mechanism A binding mechanism is provided having a plurality of carriers, each supporting a pair of engaging rods, slidably mounted lengthwise of a spine. A pinion member interfacing a plate with gear teeth mounted to one of the pair of engaging rods allows for mov... | 09/20/1988 |
| 4575273 | Binder for continuous or separated computer printout sheets A binder for computer print out paper fits into a standard sized file cabinet. It comprises a series of hinged together panels, two opposite ones of which hold along one edge a pair of rings retained in aligned slots. The rings are capable of movement in ... | 03/11/1986 |
