US2838736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High dielectric constant cavity resonator
Assignee: Erie Resistor Corp
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Filing: 1953-11-13
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Granted: 1958-06-10
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Expires: 1973-11-13
Abstract
No abstract record available.
Inventors
- 👤 James H Foster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:58
CPC Classifications
H; H01; H01P; H01P7/00; H01P7/08; H01P7/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A CAVITY RESONATOR COMPRISING A HIGH DIELECTRIC CONSTANT CERAMIC DIELECTRIC PLATE, ELECTRODES METALLIZED ON OPPOSITE FACES OF THE PLATE, SPACED HOLED THROUGH THE DIELECTRIC OUTSIDE THE ELECTRODES, METALLIZED COATINGS IN THE HOLES, TERMINALS CONNECTED TO ONE END OF THE METALLIZED COATINGS IN THE HOLES, AND A LOOP CONNECTION TO THE OTHER
Claim 2
Dependent Claim
51 words
A CAVITY RESONATOR COMPRISING A HIGH DIELECTRIC CONSTANT CERAMIC DIELECTRIC PLATE, ELECTRODES METALLIZED ON OPPOSITE FACES OF THE PLATE, SPACED HOLED THROUGH THE DIELECTRIC OUTSIDE THE ELECTRODES, METALLIZED COATINGS IN THE HOLES, TERMINALS CONNECTED TO ONE END OF THE METALLIZED COATINGS IN THE HOLES, AND A LOOP CONNECTION TO THE OTHER
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-09 | 1961-12-09 | 1962-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-09 | 1965-12-09 | 1966-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-09 | 1969-12-09 | 1970-06-10 | $7700.00 | Window Closed / Lapsed |