US2864943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Central station interrogation via relays of unattended data satellites which answer back
Assignee: Motorola Solutions Inc
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Filing: 1954-02-24
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Granted: 1958-12-16
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Expires: 1974-02-24
Abstract
No abstract record available.
Inventors
- 👤 Curtis J Schultz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:31
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/60; H04Q; H04Q9/00; H04Q9/08; H04Q9/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2733296A
Cited
US2134562A
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US2250950A
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US2541050A
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US2559390A
Cited
US2672598A
Cited
US2699496A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |