Patent US2831927A successfully refreshed from Google Patents.
US2831927A
Expired / Lapsed
US
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Automatic recording and announcing machine
Assignee: JOHN LEONARD FRANKLIN
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Filing: 1956-05-04
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Granted: 1958-04-22
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Expires: 1976-05-04
Abstract
No abstract record available.
Inventors
- 👤 John O Mccarty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:26
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/42; H04M3/487; H04M3/4872; G; G09; G09F; G09F25/00; G11; G11B; G11B5/00; G11B5/004
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2552788A
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US2724015A
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US2766323A
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US2793252A
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US2788395A
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US2779825A
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US2787669A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |