Patent US2712065A successfully refreshed from Google Patents.
US2951297A
Expired / Lapsed
US
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Radar simulation systems
Assignee: Westinghouse Air Brake Co
•
Filing: 1955-06-01
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Granted: 1960-09-06
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Expires: 1975-06-01
Abstract
No abstract record available.
Inventors
- 👤 Colker James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:58
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/40; G01S7/4052; G01S7/4082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2677199A
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US2604705A
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US2678382A
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US2555442A
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US2658996A
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US2730815A
Cited
US2744339A
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US2740205A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |