US3822443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slider for slide fasteners
Assignee: YKK Corp
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Filing: 1973-09-18
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Granted: 1974-07-09
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Expires: 1993-09-18
Abstract
Abstract A slider provided with greater flange surfaces towards its exit end for guiding and holding the fastener stringers stably thereon during the assembling of the fastener chain through the slider, so as to prevent the fastener elements from becoming displaced at the exit end and caught in the guide channel of the slider.
Inventors
- 👤 H Yoshida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:47
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/24; A44B19/26; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2561; Y10T24/2582
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A slide fastener slider having an entrance and an exit end which comprises a top and a bottom wing interconnected by a neck at one end, a bail projecting upwardly from said top wing, a pull tab pivotally connected to said bail, and spaced side flanges integral with said top wing and defining therebetween a substantially Y-shaped element guide channel, characterized in that the distance between said flanges as measured from their outer peripheries at the exit end is greater than the corresponding distance at the entrance end and in that said flanges are provided with tape guide rails having a width greatest at the exit end, rendering the contour of the slider body substantially triangular.
Claim 2
Dependent Claim
116 words
A slide fastener slider having an entrance and an exit end which comprises a top and a bottom wing interconnected by a neck at one end, a bail projecting upwardly from said top wing, a pull tab pivotally connected to said bail, and spaced side flanges integral with said top wing and defining therebetween a substantially Y-shaped element guide channel, characterized in that the distance between said flanges as measured from their outer peripheries at the exit end is greater than the corresponding distance at the entrance end and in that said flanges are provided with tape guide rails having a width greatest at the exit end, rendering the contour of the slider body substantially triangular.
References Cited (Backward Citations)
US2901803A
Cited
US3604070A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-08 | 1978-01-07 | 1978-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-08 | 1982-01-07 | 1982-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-08 | 1986-01-07 | 1986-07-09 | $7700.00 | Window Closed / Lapsed |