Patent US3165690A successfully refreshed from Google Patents.
US3165690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Harmonic generator utilizing a nonlinear reactance
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1960-12-12
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Granted: 1965-01-12
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Expires: 1980-12-12
Abstract
No abstract record available.
Inventors
- 👤 Kaufman Irving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:24
CPC Classifications
H; H03; H03B; H03B19/00; H03B19/16; H03B19/18
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
92 words
A MICROWAVE HARMONIC GENERATOR COMPRISING: A SOURCE OF FIRST FREQUENCY ENERGY; A NON-LINEAR REACTANC EELEMENT, TO WHICH SAID ENERGY IS APPLIED, FOR GENERATING A CURRENT THERETHROUGH WHICH INCLUDES AT LEAST FIRST, SECOND AND THIRD CURRENT COMPONENTS HAVING FIRST, SECOND AND THIRD FREQUENCIES; RESONANT CIRCUIT MEANS INCLUDING SAID ELEMENT FOR MAXIMIZING SAID SECOND AND THIRD CURRENT COMPONENTS; AND OUTPUT CIRCUIT MEANS FOR EXTRACTING POWER SUBSTANTIALLY ONLY AT A FREQUENCY WHICH CORRESPONDS TO THE ARITHMETIC SUM OF AT LEAST TWO OF SAID THREE FREQUENCIES, AND WHICH IS HIGHER THAN ANY OF SAID THREE FREQUENCIES.
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) | 1968-01-12 | 1968-07-13 | 1969-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-12 | 1972-07-13 | 1973-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-12 | 1976-07-13 | 1977-01-12 | $7700.00 | Window Closed / Lapsed |