Patent US3257792A successfully refreshed from Google Patents.
US3257792A
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Wire sawing strand and method of making
Assignee: Bethlehem Steel Corp
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Filing: 1961-02-10
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Granted: 1966-06-28
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Expires: 1981-02-10
Abstract
No abstract record available.
Inventors
- 👤 Robert F Joy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:06
CPC Classifications
B; B21; B21C; B21C1/00; B21C1/02; B21C1/16; B21F; B21F7/00; B23; B23D; B23D61/00; B23D61/18; B23D61/185; B23D65/00; D; D07; D07B; D07B2201/00; D07B2201/20; D07B2201/2015; D07B2201/2019; D07B7/00; D07B7/02; D07B7/027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A STONE SAW COMPRISING TWO WIRES SPIRALLY TWISTED TO FORM A STRAND, EACH OF THE WIRES BEING OF SUBSTANTIALLY ELIPTICAL SHAPE IN CROSS-SECTION WITH A MAJOR DIAMETER AND A MINOR DIAMETER, TWO ENDS OF SAID MINOR DIAMETERS OF SAID WIRES BEING FLATTENED AND IN CONTACT WITH EACH OTHER ALONG THE AXIS OF SAID STRAND, EACH OF THE OTHER ENDS OF SAID MINOR DIAMETERS OF SAID WIRES FORMING AN OUTER SURFACE OF SAID STRAND, SAID OUTER SURFACES OF EACH OF SAID WIRES HAVING A RADIUS EQUAL TO THE RADIUS OF THE STRAND.
Claim 2
Dependent Claim
91 words
A STONE SAW COMPRISING TWO WIRES SPIRALLY TWISTED TO FORM A STRAND, EACH OF THE WIRES BEING OF SUBSTANTIALLY ELIPTICAL SHAPE IN CROSS-SECTION WITH A MAJOR DIAMETER AND A MINOR DIAMETER, TWO ENDS OF SAID MINOR DIAMETERS OF SAID WIRES BEING FLATTENED AND IN CONTACT WITH EACH OTHER ALONG THE AXIS OF SAID STRAND, EACH OF THE OTHER ENDS OF SAID MINOR DIAMETERS OF SAID WIRES FORMING AN OUTER SURFACE OF SAID STRAND, SAID OUTER SURFACES OF EACH OF SAID WIRES HAVING A RADIUS EQUAL TO THE RADIUS OF THE STRAND.
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) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |