Patent US3328857A successfully refreshed from Google Patents.
US3328857A
Expired / Lapsed
US
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Zipper fastener stringer
Assignee: Scovill Inc
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Filing: 1965-12-23
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Granted: 1967-07-04
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Expires: 1985-12-23
Abstract
No abstract record available.
Inventors
- 👤 John E Burbank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:50
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/10; A44B19/02; A44B19/14; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2536; Y10T24/2539; Y10T24/2548
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A STRINGER FOR ZIPPER FASTENERS COMPRISING (A) A SERIES OF SPACED INDIVIDUAL FASTENER ELEMENTS OF PLASTIC MATERIAL EACH HAVING A HEAD AND A PAIR OF LEGS EXTENDING LATERALLY FROM SAID HEAD; (B) A PAIR OF CORDS RUNNING LENGTHWISE OF THE STRINGER; (C) ONE LEG OF EACH FASTENER ELEMENT BEING SECURED TO ONE CORD ON ONE SIDE OF THE STRINGER WHILE THE OTHER LEG OF EACH FASTENER ELEMENT IS SECURED TO THE OTHER OF SAID CORDS ON THE OTHER SIDE OF SAID STRINGER, SAID CORDS BEING POSITIONED WITHIN THE OUTER SURFACES OF SAID FASTENER ELEMENT LEGS; AND (D) ALTERNATE SECTIONS OF EACH CORD IN THE SPACES BETWEEN FASTENER ELEMENT LEGS BEING COVERED WITH PLASTIC MATERIAL AND WHEREIN THE COVERED SECTIONS OF ONE CORD BEING STAGGERED RELATIVE TO THE COVERED SECTIONS OF THE OTHER CORD.
Claim 2
Dependent Claim
133 words
A STRINGER FOR ZIPPER FASTENERS COMPRISING (A) A SERIES OF SPACED INDIVIDUAL FASTENER ELEMENTS OF PLASTIC MATERIAL EACH HAVING A HEAD AND A PAIR OF LEGS EXTENDING LATERALLY FROM SAID HEAD; (B) A PAIR OF CORDS RUNNING LENGTHWISE OF THE STRINGER; (C) ONE LEG OF EACH FASTENER ELEMENT BEING SECURED TO ONE CORD ON ONE SIDE OF THE STRINGER WHILE THE OTHER LEG OF EACH FASTENER ELEMENT IS SECURED TO THE OTHER OF SAID CORDS ON THE OTHER SIDE OF SAID STRINGER, SAID CORDS BEING POSITIONED WITHIN THE OUTER SURFACES OF SAID FASTENER ELEMENT LEGS; AND (D) ALTERNATE SECTIONS OF EACH CORD IN THE SPACES BETWEEN FASTENER ELEMENT LEGS BEING COVERED WITH PLASTIC MATERIAL AND WHEREIN THE COVERED SECTIONS OF ONE CORD BEING STAGGERED RELATIVE TO THE COVERED SECTIONS OF THE OTHER CORD.
References Cited (Backward Citations)
US2252305A
Cited
US3165793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |