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US2832892A
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Tuning device for ultra-high frequency circuits
Assignee: Allen B du Mont Laboratories Inc
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Filing: 1954-12-24
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Granted: 1958-04-29
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Expires: 1974-12-24
Abstract
No abstract record available.
Inventors
- 👤 Matthew W Slate
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:44
CPC Classifications
H; H01; H01P; H01P7/00; H01P7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2246928A
Cited
FR870011A
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US2563299A
Cited
US2601338A
Cited
US2513392A
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US2629860A
Cited
US2773989A
Cited
US2807724A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-28 | 1961-10-28 | 1962-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-28 | 1965-10-28 | 1966-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-28 | 1969-10-28 | 1970-04-29 | $7700.00 | Window Closed / Lapsed |