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US3545146A
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Ceramic-plastic radome
Assignee: Northrop Grumman Corp
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Filing: 1965-01-29
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Granted: 1970-12-08
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Expires: 1985-01-29
Abstract
No abstract record available.
Inventors
- 👤 John N Kerr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:48
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/42; H01Q1/422; B; B64; B64C; B64C1/00; B64C1/36; E; E04; E04B; E04B1/00; E04B1/32; E04B2001/3258
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3128466A
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US2828235A
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US2939186A
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US2977265A
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US3112184A
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US3110064A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-07 | 1974-06-08 | 1974-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-07 | 1978-06-08 | 1978-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-07 | 1982-06-08 | 1982-12-08 | $7700.00 | Window Closed / Lapsed |