US3263176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave frequency discriminator using a cavity resonator
Assignee: Individual
•
Filing: 1963-11-04
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Granted: 1966-07-26
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Expires: 1983-11-04
Abstract
No abstract record available.
Inventors
- 👤 Henry J Riblet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:46
CPC Classifications
H; H01; H01P; H01P7/00; H01P7/06; H03; H03D; H03D9/00; H03D9/02; H03D9/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
59 words
A MICROWAVE DISCRIMINATOR COMPRISING: WAVEGUIDES CONSTITUTING TWO PARALLEL WAVE ENERGY TRANSMISSION CHANNELS; A POWER DIVIDING 90* PHASE SHIFT COUPLER ARRANGED TO COUPLE AN INPUT SIGNAL TO THE TWO TRANSMISSION CHANNELS; A CAVITY RESONATOR; FIRST AND SECOND SLOTS FOR RESPECTIVELY COUPLING EACH TRANSMISSION CHANNEL TO THE CAVITY RESONATOR; AND EACH TRANSMISSION CHANNEL HAVING MEANS FOR DETECTING THE WAVE ENERGY THEREIN.
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) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |