US2894068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic subscriber identification system
Assignee: General Dynamics Corp
•
Filing: 1955-09-26
•
Granted: 1959-07-07
•
Expires: 1975-09-26
Abstract
No abstract record available.
Inventors
- 👤 Frank A Morris
- 👤 Milton A Clement
- 👤 Ben A Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:29
CPC Classifications
H; H04; H04M; H04M15/00; H04M15/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2410520A
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US2535509A
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US2586704A
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US2698879A
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US2619546A
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US2748197A
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US2708690A
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US2782257A
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US2785228A
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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) | 1962-07-06 | 1963-01-05 | 1963-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-06 | 1967-01-05 | 1967-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-06 | 1971-01-05 | 1971-07-07 | $7700.00 | Window Closed / Lapsed |