Patent US2449976A successfully refreshed from Google Patents.
US2449976A
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Tridimensional obstacle detection system
Assignee: International Standard Electric Corp
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Filing: 1941-02-24
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Granted: 1948-09-28
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Expires: 1961-02-24
Abstract
No abstract record available.
Inventors
- 👤 Henri G Busignies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:40
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/42; G01S13/422
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1924156A
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US2063610A
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US2412631A
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US2227598A
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US2207267A
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US2189549A
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US2225046A
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US2412702A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-28 | 1952-03-29 | 1952-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-28 | 1956-03-29 | 1956-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-28 | 1960-03-29 | 1960-09-28 | $7700.00 | Window Closed / Lapsed |