US3149388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Helical slide fastener
Assignee: Opti Holding AG
•
Filing: 1963-08-02
•
Granted: 1964-09-22
•
Expires: 1983-08-02
Abstract
No abstract record available.
Inventors
- 👤 Wilcken Hugo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:16
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/24; A44B19/40; A44B19/406; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2518; Y10T24/2527
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
A HELICAL SPRING TYPE FASTENER, COMPRISING TWO CARRIER RIBBONS EXTENDING IN PARALLEL RELATION; TWO FLATTENED HELICAL SPRINGS FORMED BY A WIRE OF THERMOPLASTIC MATERIAL AND BEING DISPOSED EACH ADJACENT THE FACING EDGES OF EACH OF SAID CARRIER RIBBON EXTENDING LONGITUDINALLY ALONG ONE SIDE THEREOF; ARCUATE, INWARDLY DIRECTED DEFORMATIONS FORMED IN THE MIDDLE OF ONE OF THE FLATTENED CONVOLUTION PORTIONS OF SAID HELICAL SPRINGS, SAID DEFORMATIONS FORMING A LONGITUDINALLY EXTENDING GROOVE AT THE SIDE OF SAID HELICAL SPRING WHICH IS FACING AWAY FROM SAID CARRIER RIBBON, A TEXTILE IRONING PROTECTION ACCOMMODATED AND EXTENDING WITHIN SAID GROOVE PROJECTING WITH ITS UPPER SURFACE BEYOND THE ADJACENT CRESTS OF SAID DEFORMED CONVOLUTION PORTIONS, A SEAM OF SEWING STITCHES EXTENDING ALONG SAID GROOVE FORMED BY SAID DEFORMATIONS, AND EMBRACING EACH CONVOLUTION HOLDING THEM SPACED APART IN UNIFORM SPACINGS CORRESPONDING SUBSTANTIALLY TO THE CROSS SECTIONAL DIMENSION OF SAID WIRE, AND COUPLING SURFACES PROVIDED AT EACH OF THE CONVOLUTION PORTIONS OF THE HELICAL SPRINGS WHICH ARE FACING EACH OTHER, SAID COUPLING SURFACES BEING FORMED BY WIDENED PORTIONS OF SAID WIRE PROJECTING BEYOND BOTH SIDES THEREOF.
Claim 2
Dependent Claim
178 words
A HELICAL SPRING TYPE FASTENER, COMPRISING TWO CARRIER RIBBONS EXTENDING IN PARALLEL RELATION; TWO FLATTENED HELICAL SPRINGS FORMED BY A WIRE OF THERMOPLASTIC MATERIAL AND BEING DISPOSED EACH ADJACENT THE FACING EDGES OF EACH OF SAID CARRIER RIBBON EXTENDING LONGITUDINALLY ALONG ONE SIDE THEREOF; ARCUATE, INWARDLY DIRECTED DEFORMATIONS FORMED IN THE MIDDLE OF ONE OF THE FLATTENED CONVOLUTION PORTIONS OF SAID HELICAL SPRINGS, SAID DEFORMATIONS FORMING A LONGITUDINALLY EXTENDING GROOVE AT THE SIDE OF SAID HELICAL SPRING WHICH IS FACING AWAY FROM SAID CARRIER RIBBON, A TEXTILE IRONING PROTECTION ACCOMMODATED AND EXTENDING WITHIN SAID GROOVE PROJECTING WITH ITS UPPER SURFACE BEYOND THE ADJACENT CRESTS OF SAID DEFORMED CONVOLUTION PORTIONS, A SEAM OF SEWING STITCHES EXTENDING ALONG SAID GROOVE FORMED BY SAID DEFORMATIONS, AND EMBRACING EACH CONVOLUTION HOLDING THEM SPACED APART IN UNIFORM SPACINGS CORRESPONDING SUBSTANTIALLY TO THE CROSS SECTIONAL DIMENSION OF SAID WIRE, AND COUPLING SURFACES PROVIDED AT EACH OF THE CONVOLUTION PORTIONS OF THE HELICAL SPRINGS WHICH ARE FACING EACH OTHER, SAID COUPLING SURFACES BEING FORMED BY WIDENED PORTIONS OF SAID WIRE PROJECTING BEYOND BOTH SIDES THEREOF.
References Cited (Backward Citations)
FR1232000A
Cited
US3022803A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |