Patent US3618178A successfully refreshed from Google Patents.
US3618178A
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US
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Separable slide fastener
Assignee: LYSTA
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Filing: 1970-05-22
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Granted: 1971-11-09
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Expires: 1990-05-22
Abstract
Abstract A SEPARABLE SLIDE FASTENER HAS AT ITS STARTING END AN INSERT BLOCK WITH A RIBBED PROTRUSION WHICH SNUGLY MATES WITH A GROOVED PASSAGE IN A SLIDER TO HOLD THE TWO RELATIVE TO EACH OTHER IN AN IDEAL ALIGNED FASTENING POSITION. THE PROTRUSION EXTENDS ABOUT HALFWAY INTO THE SLIDER AND PREVENTS THIS SLIDER FROM TWISTING AROUND OR BECOMING COCKED ON THE PROTRUSION.
Inventors
- 👤 Harry Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:28
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/24; A44B19/38; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2511; Y10T24/2513
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |