US2724015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telephone answering and recording device
Assignee: TELEPHONE ANSWERING AND RECORD
•
Filing: 1950-05-27
•
Granted: 1955-11-15
•
Expires: 1970-05-27
Abstract
No abstract record available.
Inventors
- 👤 Harry R Van Deventer
- 👤 John J Shively
- 👤 Paul C Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:28
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/64; H04M1/65; H04M1/6515
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1902950A
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US2080812A
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US2116314A
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US2069810A
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US2171366A
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US2348204A
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US2336777A
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US2419567A
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US2419568A
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US2532150A
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US2535657A
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US2537406A
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US2537407A
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US2533234A
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US2658107A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-14 | 1959-05-16 | 1959-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-14 | 1963-05-16 | 1963-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-14 | 1967-05-16 | 1967-11-15 | $7700.00 | Window Closed / Lapsed |