Patent US1973741A successfully refreshed from Google Patents.
Patent US2880416A successfully refreshed from Google Patents.
US2880416A
Expired / Lapsed
US
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Electric antenna
Assignee: Individual
•
Filing: 1956-05-25
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Granted: 1959-03-31
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Expires: 1976-05-25
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Munzig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:13
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/44; H01Q1/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2375580A
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US2553734A
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US2581983A
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US2611082A
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US2496646A
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US2485264A
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US2520811A
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US2562654A
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US2611080A
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US2666846A
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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) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |