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US2537407A
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US
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Method of and arrangement for the coded remote setting in operation of an automatic telephonograph over a telephone circuit
Assignee: DAPHNE INVEST TRUST
•
Filing: 1947-07-29
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Granted: 1951-01-09
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Expires: 1967-07-29
Abstract
No abstract record available.
Inventors
- 👤 Handschin Max
- 👤 Wagner Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:09
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/64; H04M1/65; H04M1/652
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1726947A
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US1765471A
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US1951454A
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US1949136A
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US1973081A
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US2171366A
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US2195081A
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US2238555A
Cited
US2261420A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |