US3277487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency independent (log periodic) monopole and dipole antennas
Assignee: Dorne and Margolin Inc
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Filing: 1963-12-11
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Granted: 1966-10-04
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Expires: 1983-12-11
Abstract
No abstract record available.
Inventors
- 👤 David G Berry
- 👤 Vito P Minerva
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:28
CPC Classifications
H; H01; H01Q; H01Q11/00; H01Q11/02; H01Q11/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A LOG PERIODIC ANTENNA COMPRISING: A PLURALITY OF N RADIATOR RECEPTOR ELEMENTS OF RESPECTIVELY DIFFERENT LENGTHS RELATED BY THE LOG PERIODIC DESIGN CHARACTERISTIC $, WHERE N IS AN INTEGER OF THREE OR MORE AND $ IS A NUMBER LESS THAN ONE, AND A RESPECTIVE MEANS HAVING THE PROPERTIES OF A PARALLEL RESONANT CIRCUIT CONNECTING TWO ADJACENT ELEMENTS TOGETHER IN ORDER OF INCREASING LENGTH, EACH SAID MEANS HAVING A RESPECTIVELY DIFFERENT RESONANT FREQUENCY.
Claim 2
Dependent Claim
72 words
A LOG PERIODIC ANTENNA COMPRISING: A PLURALITY OF N RADIATOR RECEPTOR ELEMENTS OF RESPECTIVELY DIFFERENT LENGTHS RELATED BY THE LOG PERIODIC DESIGN CHARACTERISTIC $, WHERE N IS AN INTEGER OF THREE OR MORE AND $ IS A NUMBER LESS THAN ONE, AND A RESPECTIVE MEANS HAVING THE PROPERTIES OF A PARALLEL RESONANT CIRCUIT CONNECTING TWO ADJACENT ELEMENTS TOGETHER IN ORDER OF INCREASING LENGTH, EACH SAID MEANS HAVING A RESPECTIVELY DIFFERENT RESONANT FREQUENCY.
References Cited (Backward Citations)
US2229865A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |