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US3484697A
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Multi-loop antenna and superregenerative detector
Assignee: Lear Siegler Inc
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Filing: 1965-08-27
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Granted: 1969-12-16
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Expires: 1985-08-27
Abstract
No abstract record available.
Inventors
- 👤 Irving J Abend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:25
CPC Classifications
H; H03; H03D; H03D11/00; H03D11/02; H03D11/04; H01; H01Q; H01Q1/00; H01Q1/27; H01Q1/273; H01Q23/00; H03B; H03B5/00; H03B5/08; H03B5/12; H03B5/1203; H03B5/1231; H03F; H03F3/00; H03F3/189; H03F3/19; H03F3/191; H03B2201/00; H03B2201/01; H03B2201/012; H03D2200/00; H03D2200/0041; H03D2200/0094; H03D2200/0096
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2451291A
Cited
US3185947A
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US3005966A
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US3119065A
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US3151297A
Cited
US3296535A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-15 | 1973-06-16 | 1973-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-15 | 1977-06-16 | 1977-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-15 | 1981-06-16 | 1981-12-16 | $7700.00 | Window Closed / Lapsed |