US2364556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telegraphone
Assignee: Thomas A Edison Inc
•
Filing: 1943-11-24
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Granted: 1944-12-05
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Expires: 1963-11-24
Abstract
No abstract record available.
Inventors
- 👤 Richard M Somers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:43
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/1883; G06; G06M; G06M1/00; G06M1/04; G06M1/045; G11B15/675; G11B15/67563; G11B15/67573; G11B27/00; G11B27/10; G11B27/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-12-05 | 1948-06-05 | 1948-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-12-05 | 1952-06-05 | 1952-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-12-05 | 1956-06-05 | 1956-12-05 | $7700.00 | Window Closed / Lapsed |