US3093803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter having lumped resonance elements spaced along length of shielding enclosure, with adjustable magnetic coupling between elements
Assignee: Allen Bradley Co LLC
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Filing: 1959-08-19
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Granted: 1963-06-11
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Expires: 1979-08-19
Abstract
No abstract record available.
Inventors
- 👤 Heinz M Schlicke
- 👤 Hans J Rey
- 👤 Hans E Weidmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:17
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/01; H03H7/0153; H03H7/0161
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
IN A NARROW BAND PASS FILTER FOR RADIO FREQUENCIES THE COMBINATION COMPRISING: A TUBULAR METALLIC ENCLOSURE FOR CONFINING MAGNETIC FIELDS THEREIN; A PAIR OF LONGITUDINALLY SPACED RESONANT CIRCUIT ELEMENTS IN SAID ENCLOSURE EACH ADAPTED TO HAVE STRONG MAGNETIC FIELDS ASSOCIATED THEREWITH AT RESONANCE, EACH CIRCUIT ELEMENT HAVING A CONDUCTIVE STUD EXTENDING TRANSVERSELY ACROSS THE INTERIOR OF THE ENCLOSURE WHICH CONNECTS AT ITS OPPOSITE ENDS WITH THE ENCLOSURE AND HAVING A CAPACITOR INTERPOSED IN THE STUD TO THEREBY FORM AN INDUCTIVE-CAPACITIVE CIRCUIT COMPRISING AN INDUCTIVE LOOP EXTENDING THROUGH THE STUD AND
Claim 2
Dependent Claim
90 words
IN A NARROW BAND PASS FILTER FOR RADIO FREQUENCIES THE COMBINATION COMPRISING: A TUBULAR METALLIC ENCLOSURE FOR CONFINING MAGNETIC FIELDS THEREIN; A PAIR OF LONGITUDINALLY SPACED RESONANT CIRCUIT ELEMENTS IN SAID ENCLOSURE EACH ADAPTED TO HAVE STRONG MAGNETIC FIELDS ASSOCIATED THEREWITH AT RESONANCE, EACH CIRCUIT ELEMENT HAVING A CONDUCTIVE STUD EXTENDING TRANSVERSELY ACROSS THE INTERIOR OF THE ENCLOSURE WHICH CONNECTS AT ITS OPPOSITE ENDS WITH THE ENCLOSURE AND HAVING A CAPACITOR INTERPOSED IN THE STUD TO THEREBY FORM AN INDUCTIVE-CAPACITIVE CIRCUIT COMPRISING AN INDUCTIVE LOOP EXTENDING THROUGH THE STUD AND
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |