Patent US4614448A successfully refreshed from Google Patents.
Patent US2603883A successfully refreshed from Google Patents.
US2603883A
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US
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Position simulating apparatus for radar trainers
Assignee: Individual
•
Filing: 1949-06-30
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Granted: 1952-07-22
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Expires: 1969-06-30
Abstract
No abstract record available.
Inventors
- 👤 Donahue John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:54
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)
US2096450A
Cited
US2472129A
Cited
US2471315A
Cited
US2417442A
Cited
US2439169A
Cited
US2448885A
Cited
US2476746A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |