US2710893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic telephone system and translator therefor
Assignee: TDK Micronas GmbH
•
Filing: 1951-03-27
•
Granted: 1955-06-14
•
Expires: 1971-03-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Richard P Boyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:13
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/0004
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1734083A
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US1648031A
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US1794603A
Cited
US1744696A
Cited
US2201573A
Cited
US2508644A
Cited
US2524774A
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US2574903A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-13 | 1958-12-13 | 1959-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-13 | 1962-12-13 | 1963-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-13 | 1966-12-13 | 1967-06-14 | $7700.00 | Window Closed / Lapsed |