Patent US2704782A successfully refreshed from Google Patents.
US2704782A
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Retractile cords and methods of making the same
Assignee: AT&T Inc
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Filing: 1950-08-30
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Granted: 1955-03-22
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Expires: 1970-08-30
Abstract
No abstract record available.
Inventors
- 👤 William L Ames
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:43
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/02; H04M1/15; H01; H01B; H01B13/00; H01B13/008; Y; Y10; Y10S; Y10S264/00; Y10S264/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1517138A
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US1730945A
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DE481795C
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US1989066A
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US2136743A
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US2413715A
Cited
US2643109A
Cited
US2573439A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-03-21 | 1958-09-20 | 1959-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-21 | 1962-09-20 | 1963-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-21 | 1966-09-20 | 1967-03-22 | $7700.00 | Window Closed / Lapsed |