US2623164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single channel, single frequency, mobile radio telephone system
Assignee: Automatic Electric Laboratories Inc
•
Filing: 1948-11-01
•
Granted: 1952-12-23
•
Expires: 1968-11-01
Abstract
No abstract record available.
Inventors
- 👤 Roswell H Herrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:58
CPC Classifications
H; H04; H04W; H04W84/00; H04W84/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2064904A
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GB516615A
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US2333039A
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US2421169A
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GB576845A
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GB570415A
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US2472585A
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GB597114A
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US2454498A
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US2457434A
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US2523914A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |