US3444598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sliding clasp fasteners
Assignee: William Prym Werke GmbH and Co KG
•
Filing: 1966-04-11
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Granted: 1969-05-20
•
Expires: 1986-04-11
Abstract
No abstract record available.
Inventors
- 👤 Friedrich Glindmeyer
- 👤 Fritz Darandik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:32
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/24; A44B19/34; A44B19/346; A41; A41H; A41H37/00; A41H37/001; A41H37/003; D; D03; D03D; D03D1/00; D10; D10B; D10B2501/00; D10B2501/06; D10B2501/063; D10B2501/0631; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2518; Y10T24/252; Y10T24/2539; Y10T24/2548
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A SLIDE FASTENER COMPRISING, IN COMBINATION, A PAIR OF STRINGERS EACH ADAPTED TO BE CONNECTED BY A THREAD TO THE LOOPS AT THE EDGE PORTION OF A KNITTED FABRIC AND EACH INCLUDING A WOVEN TAPE AND A ROW OF LOCKING ELEMENTS FASTENED TO ONE EDGE PORTION OF THE TAPE, SAID WOVEN TAPE BEING PROVIDED WITH A PLURALITY OF APERTURES ADJACENT SAID LOCKING ELEMENTS AND ARRANGED SPACED IN LONGITUDINAL DIRECTION OF SAID STRINGER AT DISTANCES FROM EACH OTHER ACCORDING TO THE STITCH SPACING AND YARN THICKNESS OF THE KNITTED FABRIC TO BE CONNECTED THERETO, SAID APERTURES BEING FORMED BY A WEAVE THAT IS LOOSER IN THE AREA OF THE APERTURES THAN IN THE REMAINING PORTION OF SAID TAPE.
Claim 2
Dependent Claim
117 words
A SLIDE FASTENER COMPRISING, IN COMBINATION, A PAIR OF STRINGERS EACH ADAPTED TO BE CONNECTED BY A THREAD TO THE LOOPS AT THE EDGE PORTION OF A KNITTED FABRIC AND EACH INCLUDING A WOVEN TAPE AND A ROW OF LOCKING ELEMENTS FASTENED TO ONE EDGE PORTION OF THE TAPE, SAID WOVEN TAPE BEING PROVIDED WITH A PLURALITY OF APERTURES ADJACENT SAID LOCKING ELEMENTS AND ARRANGED SPACED IN LONGITUDINAL DIRECTION OF SAID STRINGER AT DISTANCES FROM EACH OTHER ACCORDING TO THE STITCH SPACING AND YARN THICKNESS OF THE KNITTED FABRIC TO BE CONNECTED THERETO, SAID APERTURES BEING FORMED BY A WEAVE THAT IS LOOSER IN THE AREA OF THE APERTURES THAN IN THE REMAINING PORTION OF SAID TAPE.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |