Patent US3550142A successfully refreshed from Google Patents.
US3550142A
Expired / Lapsed
US
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Horn reflector antenna
Assignee: Gabriel Electronics Inc
•
Filing: 1968-03-18
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Granted: 1970-12-22
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Expires: 1988-03-18
Abstract
No abstract record available.
Inventors
- 👤 John W Dawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:04
CPC Classifications
H; H01; H01Q; H01Q19/00; H01Q19/10; H01Q19/12; H01Q19/13; H01Q19/132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2416675A
Cited
US2846680A
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US2679003A
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US2814038A
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US3332083A
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US3430245A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |