Patent US3339720A successfully refreshed from Google Patents.
US3339720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal fastener strip
Assignee: Individual
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Filing: 1965-12-28
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Granted: 1967-09-05
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Expires: 1985-12-28
Abstract
No abstract record available.
Inventors
- 👤 Barnes Fayette Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:28
CPC Classifications
F; F16; F16B; F16B15/00; F16B15/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A U-SHAPED ELONGATED STRIP OF METALLIC FASTENERS, EACH OF SAID FASTENERS BEING OF U-SHAPE AND DISPOSED IN SIDE-BY-SIDE ABUTTING RELATION SAID FASTENERS HAVING SURFACE IRREGULARITIES WHICH DEFINE MINUTE SPACED SURFACE PROJECTIONS, SPACED PROJECTIONS OF ONE FASTENERS BEING RESISTANCE WELDED TO OPPOSE SPACED SURFACE AREAS OF THE FASTENERS IMMEDIATELY ADJACENT SAID ONE FASTENER BY PASSING AN ELECTRICAL CURRENT FROM ONE END OF THE STRIP TO THE OTHER, THE SPACING BETWEEN THE WELDED FUSED AREAS OF ONE PAIR OF ADJACENT FASTENERS BEING OF A DIFFERENT PATTERN FROM THAT OF ANOTHER PAIR OF ADJACENT CONNECTED FASTENERS SO THAT ADJACENT FASTENERS ARE IN DISCONTINUOUS ABUTMENT, WHEREBY SAID FASTENERS ARE RETAINED IN STRIP FORM YET ALLOWING INDIVIDUAL FASTENERS TO BE READILY SEPARATED FROM THE FASTENERS IMMEDIATELY ADJACENT THERETO BY FRACTURE OF THE WELDED METAL PORTIONS CONNECTING SAID FASTENERS TOGETHER.
Claim 2
Dependent Claim
134 words
A U-SHAPED ELONGATED STRIP OF METALLIC FASTENERS, EACH OF SAID FASTENERS BEING OF U-SHAPE AND DISPOSED IN SIDE-BY-SIDE ABUTTING RELATION SAID FASTENERS HAVING SURFACE IRREGULARITIES WHICH DEFINE MINUTE SPACED SURFACE PROJECTIONS, SPACED PROJECTIONS OF ONE FASTENERS BEING RESISTANCE WELDED TO OPPOSE SPACED SURFACE AREAS OF THE FASTENERS IMMEDIATELY ADJACENT SAID ONE FASTENER BY PASSING AN ELECTRICAL CURRENT FROM ONE END OF THE STRIP TO THE OTHER, THE SPACING BETWEEN THE WELDED FUSED AREAS OF ONE PAIR OF ADJACENT FASTENERS BEING OF A DIFFERENT PATTERN FROM THAT OF ANOTHER PAIR OF ADJACENT CONNECTED FASTENERS SO THAT ADJACENT FASTENERS ARE IN DISCONTINUOUS ABUTMENT, WHEREBY SAID FASTENERS ARE RETAINED IN STRIP FORM YET ALLOWING INDIVIDUAL FASTENERS TO BE READILY SEPARATED FROM THE FASTENERS IMMEDIATELY ADJACENT THERETO BY FRACTURE OF THE WELDED METAL PORTIONS CONNECTING SAID FASTENERS TOGETHER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |