US2982964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable tuning device and antenna using same
Assignee: International Telephone and Telegraph Corp
•
Filing: 1957-03-26
•
Granted: 1961-05-02
•
Expires: 1977-03-26
Abstract
No abstract record available.
Inventors
- 👤 Raymond H Bresk
- 👤 Charles P Majkrzak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:50
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/36; H01Q1/362
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US488121A
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US2563413A
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US1036304A
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US1232450A
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GB430548A
Cited
US2252919A
Cited
US2294881A
Cited
DE909583C
Cited
US2498350A
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US2566761A
Cited
US2629013A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |