Patent US2750653A successfully refreshed from Google Patents.
US2750653A
Expired / Lapsed
US
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Yarn structure
Assignee: Eastman Kodak Co
•
Filing: 1955-01-19
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Granted: 1956-06-19
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Expires: 1975-01-19
Abstract
No abstract record available.
Inventors
- 👤 James C White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:40
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/253; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2973
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
6 words
A WIRE-SHAPED MAGNETIC RECORD CARRIER COMPRISING
Claim 2
Dependent Claim
6 words
A WIRE-SHAPED MAGNETIC RECORD CARRIER COMPRISING
Claim 3
Dependent Claim
50 words
CELLULOSE ORGANIC ACID ESTER YARN CONSISTING OF A AN ALUMINUM CORE, A CONCENTRIC ALUMINUM SHEATH SPACED PLURALITY OF FILAMENTS OF CLOVER-LEAF CROSS-SECTION AND A FROM SAID CORE AND DEFINING AN ANNULAR SPACE THEREBYPLURALITY OF FILAMENTS OF Y-SHAPED CORSS-SECTION. TWEEN, AND FINELY DIVIDED PERMANENTLY MAGNETIZABLE FERROMAGNETIC MATERIAL FILLING SAID ANNULAR SPACE.
Claim 4
Dependent Claim
50 words
CELLULOSE ORGANIC ACID ESTER YARN CONSISTING OF A AN ALUMINUM CORE, A CONCENTRIC ALUMINUM SHEATH SPACED PLURALITY OF FILAMENTS OF CLOVER-LEAF CROSS-SECTION AND A FROM SAID CORE AND DEFINING AN ANNULAR SPACE THEREBYPLURALITY OF FILAMENTS OF Y-SHAPED CORSS-SECTION. TWEEN, AND FINELY DIVIDED PERMANENTLY MAGNETIZABLE FERROMAGNETIC MATERIAL FILLING SAID ANNULAR SPACE.
References Cited (Backward Citations)
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Cited
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Cited
US2588583A
Cited
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Cited
US2677184A
Cited
US2673368A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-19 | 1959-12-19 | 1960-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-19 | 1963-12-19 | 1964-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-19 | 1967-12-19 | 1968-06-19 | $7700.00 | Window Closed / Lapsed |