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 |
| 8091187 | Zip fastener end stop A zip fastener comprises a pair of tapes and coupling elements along adjacent edges of the tapes. The tapes are partly cut away to form a gap into which an end stop is moulded. The end stop is provided so as to extend along the tape edges away from the fastener coup... | 01/10/2012 |
| 7334302 | Bottom end stop for slide fastener The invention provides a bottom end stop for a slide fastener having a sufficient strength and an excellent appearance, wherein bottom ends of fastener stringers provided with a first and a second member are inserted through shoulder mouths of a slider; the first an... | 02/26/2008 |
| 7313847 | CTF flip-N-zip slider The CTF Flip-N-Zip slider enables the purchasers of a zipper with the CTF Flip-N-Zip slider installed to disconnect at least one side of a zipped zipper and return it to the starting position. Current fixed sliders are very hard to fix if a foreign object jams the z... | 01/01/2008 |
| 7305742 | Seal for zippered bag The present invention provides a recloseable bag, the bag having a mouth and including a closure at the mouth, the closure having a first end and a second end. The recloseable bag also includes a first crushed section at the first end of the closure, the closure fur... | 12/11/2007 |
| 7251866 | End stop for slide fastener An end stop which does not induce separation or deterioration in its mounting portion by fusing part thereof. A linear fastener element row formed of synthetic resin is mounted on a side edge of a fastener tape, and a rod-like body of synthetic resin is inserted int... | 08/07/2007 |
| 7214173 | Laser for forming bags from a web of material A fastener includes first and second tracks. The first track includes a first profile, and the second track includes a second profile for interlocking with the first profile. The fastener extends between opposing ends. The first and second profiles at each of the op... | 05/08/2007 |
| 7185400 | Top end stop of slide fastener A top end stop of a slide fastener is attached to fastener stringers on a box pin side, and has a first side face opposing a guide column of a slider and a second side face on an opposite side. The first side face has first and second opposing side faces intersectin... | 03/06/2007 |
| 7082648 | Air/water-tight slide fastener An air/water-tight slide fastener has an end stop. The end stop has a flange portion extending therearoud. At least part of the flange is extensive enough to be integrally fixed to the opening edges of an opening formed in an article. Since the flange portion is fir... | 08/01/2006 |
| 6976293 | Slide fastener with blocking of the slider A slide fastener, of the type having two strips provided with fastening devices, and having a slider that slides along the length of the edges of the strips to control the closing/locking and the opening/unlocking of the fastening devices of the two strips. The slid... | 12/20/2005 |
| 6826810 | Separable bottom end stop assembly for slide fastener The separable bottom end stop assembly has male and female members engageable with and releasable from each other in a front-to-back direction thereof. A slide plate of the male member has an engagement leg portion projected therefrom, while a sliding plate of the f... | 12/07/2004 |
| 6701585 | Stop device for upper stops and a pull of a nylon zipper A stop device for upper stops and a pull of a Nylon zipper has an upper stop formed by a left stop and a right stop; a pull being installed on one end of a zipper strip. The upper end surfaces and the bottom of the left stop and right stop are formed with... | 03/09/2004 |
| 6568046 | Closure device The closure device includes interlocking fastening strips and a slider. The ends of the fastening strips are heat sealed, melted or otherwise secured together. The fastening strips include a slit near the end of the fastening strips. The slit prevents the... | 05/27/2003 |
| 6385818 | End stop and slider for reclosable fastener A closure device for a slider bag with a slider and an end stop operable to releasably latch the slider in the closed position and release the slider with minimal user applied force. The closure device includes first and second interlocking fastening stri... | 05/14/2002 |
| 6112383 | Bag tag and zipper lock and method of making A combination bag tag and zipper lock is formed from a stamped out piece of metal, and has a pair of pointed legs which may be formed from a frangible central portion and bent outwardly, away from a first surface of the stamped out blank so as to form a p... | 09/05/2000 |
| 5940941 | Zipper apparatus and method facilitating maintenance and repair A device and method which facilitates the removal of a zipper component such as a slider e.g. for maintenance, repair, security and the like, is provided. In one embodiment a plate configured so that it can define a receiving area is positioned adjacent t... | 08/24/1999 |
| 5745960 | Zipper apparatus and method facilitating maintenance and repair A device and method which facilitates the removal of a zipper component such as a slider e.g. for maintenance, repair, security and the like, is provided. In one embodiment a plate configured so that it can define a receiving area is positioned adjacent t... | 05/05/1998 |
| 5638585 | Separable bottom-end-stop assembly of synthetic resin for slide fastener In a separable slide fastener, a separable bottom-end-stop assembly of synthetic resin is in the form of three-member structure composed of a first pin, a second pin and a box. The first pin has a locking portion. The box has first and second pin insertio... | 06/17/1997 |
| 5482375 | Tubular plastic end stops bonded to plastic zipper Plastic-film zipper bags having tubular plastic end stops bonded to the plastic zipper to seal the ends of the zipper and to provide stops to retain a slider on the zipper are disclosed. Also disclosed is a method of installing the tubular plastic end sto... | 01/09/1996 |
| 5172456 | Zipper with fusible woven yarn A mounting adapted to be attached to an article includes a woven material with front and rear slides and made by warp and weft yarns, one of the warp yarns being a thermoplastic coating on a supporting yarn center operative to heat seal the mounting tape ... | 12/22/1992 |
| 5161286 | End clamp stops for plastic reclosable fastener A thermoplastic bag having a zipper that is operated by a slider is provided with end termination clips that firmly holds the two zipper elements together to resist stresses applied by normal use and also stops the slider from going off past the end of th... | 11/10/1992 |
| 4890935 | Leak resistant zipper A leak resistant toothless plastic zipper is provided. The closed end of the zipper fused together and/or is secured in position by a clamp from which a gasket extends toward the open end of the zipper to engage with the zipper slider in sealing the gap t... | 01/02/1990 |
| 4782563 | End stop for slide fasteners An end stop for slide fasteners includes a rectangular block molded on a portion of folded inner longitudinal tape edges including a plurality of coupling elements mounted thereon, and an integral peripheral seat attached to opposed stringer tapes. The bl... | 11/08/1988 |
| 4756061 | End terminating means for zip fasteners End terminating means (30,32) for a zip fastener (10), which comprises two strips of material (12,14) adapted to be releasably secured together, is in the form of a receptacle (FIG. 2a) having an open end through which adjacent ends of the strips are inse... | 07/12/1988 |
| 4587694 | Bottom stop for slide fasteners A bottom stop with an ornamental design thereon has a pair of upper and lower rectangular plates spaced from each other and integrally joined by a connector post located adjacent to one end of each of the upper and lower plates. The upper plate has a pair... | 05/13/1986 |
| 4437210 | Bridge top stop for slide fasteners A bridge top stop for slide fasteners comprising: a body including a sidewall inwardly curved to define a substantially inverted U-shaped opening and a pair of plates connected at one edge by the sidewall, each of the plates including a pair of laterally ... | 03/20/1984 |
| 4308645 | Separable slide fastener A separable slide fastener which includes a pair of stringers, a pair of pin members each secured at one end portion of one stringer, and a retainer for separably closing said pin members to each other is disclosed. The retainer may be a slidable one wher... | 01/05/1982 |
| 4136424 | Bridge top stop for slide fasteners A bridge top stop comprises a web having a widened lower end and a contracted upper end, a pair of transversely spaced, pointed legs at the lower end of the web, and another pair of transversely spaced, pointed legs at the upper end of the web. Piercing a... | 01/30/1979 |
| 4129928 | Slide fastener A slide fastener includes a bottom end stop member for limiting the downward or opening movement of a slider along a pair of series of fastener elements carried on and along confronting longitudinal edges of oppositely disposed stringer tapes. Each of upp... | 12/19/1978 |
| 4118839 | Retaining device for concealed slide fastener A retaining device for retaining a terminal end portion of a so-called concealed slide fastener in closed disposition against accidental splitting or disengagement of the intermeshed fastener elements at the end portion. The retaining device has a base; a... | 10/10/1978 |
| 4054973 | Slide fastener chain with wide gap and method and apparatus for manufacture A gap is formed in a slide fastener chain by cutting out a section of the interlocking fastening elements and the inner longitudinal edge portions of tapes supporting the fastening elements to be removed. A narrow band bordering the gap is formed by compr... | 10/25/1977 |
| 3964137 | Slide fastener A slide fastener is disclosed which comprises a pair of stringer tapes of a warp-knitted structure including wales and fastener component parts attached to the tapes. These fastener component parts are made of a thermoplastic material and attached by inje... | 06/22/1976 |
| 3959858 | Bridge top stop for slide fasteners A bridge top end stop for slide fasteners which comprises a body mounted astride the stringer tapes and having its rear end wall offset complementarily in shape to a front end face of the slider. There are provided a pair of spaced-apart tongues formed in... | 06/01/1976 |
| 3953912 | Concealed sliding clasp fastener A concealed sliding clasp fastener is described, which fastener is provided with an adjustable end stop movably mounted on interengaged rows of coupling elements and positioned between a slider and a permanently secured bottom stop. The adjustable end sto... | 05/04/1976 |