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US2739307A
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Pulse-echo system for providing indications of moving objects in response to the reflection of a single transmitted pulse
Assignee: Lanteris Space LLC
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Filing: 1946-08-31
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Granted: 1956-03-20
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Expires: 1966-08-31
Abstract
No abstract record available.
Inventors
- 👤 David E Sunstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:02
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/50; G01S13/52; G01S13/522; G01S13/524; G01S13/53
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE21955E
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US1750668A
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US2193361A
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US2189549A
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US2423023A
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US2406316A
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US2402464A
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US2408742A
Cited
US2479568A
Cited
US2422064A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-20 | 1959-09-19 | 1960-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-20 | 1963-09-19 | 1964-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-20 | 1967-09-19 | 1968-03-20 | $7700.00 | Window Closed / Lapsed |