US2797392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical conductor comprising multiplicity of insulated filaments
Assignee: AT&T Inc
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Filing: 1952-04-21
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Granted: 1957-06-25
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Expires: 1972-04-21
Abstract
No abstract record available.
Inventors
- 👤 Albert M Clogston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:33
CPC Classifications
B; B01; B01J; B01J39/00; B01J39/02; B21; B21C; B21C37/00; B21C37/06; B21C37/15; C; C03; C03C; C03C21/00; C03C21/001; C03C25/00; C03C25/10; C03C25/465; C03C25/475; C03C25/60; C03C25/601; C03C25/66; C03C25/68; D; D06; D06P; D06P1/00; D06P1/0076; H; H01; H01B; H01B3/00; H01B3/02; H01B3/08; H01B7/00; H01B7/30; H01J; H01J9/00; H01J9/02; H01J9/04; H01J9/06; H01P; H01P3/00; H01P3/18
Claims Analysis
Total Claims: 0
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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) | 1960-06-24 | 1960-12-24 | 1961-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-24 | 1964-12-24 | 1965-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-24 | 1968-12-24 | 1969-06-25 | $7700.00 | Window Closed / Lapsed |