Patent US3241064A successfully refreshed from Google Patents.
US3241064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spectrum analyzer including means for generating a marker signal indicating a selected filter channel
Assignee: HALLICRAFTERS CO
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Filing: 1961-05-05
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Granted: 1966-03-15
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Expires: 1981-05-05
Abstract
No abstract record available.
Inventors
- 👤 John H Bartels
- 👤 Jr Edward J Mcgowan
- 👤 Conrad R Montalto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:18
CPC Classifications
G; G01; G01R; G01R23/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
118 words
APPARATUS OF THE CHARACTER DESCRIBED FOR MEASURING THE FREQUENCY OF AN ENERGY SOURCE, COMPRISING: MEANS INCLUDING A MULTI-POSITION SELECTOR SWITCH CONNECTED WITH SAID SOURCE FOR SCANNING A BAND OF FREQUENCIES, INCLUDING THE FREQUENCY OF THE SOURCE; MEANS FOR GENERATING A SERIES OF PULSES CORRESPONDING WITH MOVEMENT FROM POSITION TO POSITION OF SAID SWITCH AND INCLUDING MEANS FOR COUNTING SAID PULSES; A PEAK DETECTOR CONNECTED WITH SAID SWITCH; MEANS RESPONSIVE TO SAID PEAK DETECTOR AND TO SAID MEANS FOR GENERATING A SERIES OF PULSES FOR INDICATING THE FREQUENCY OF SAID SOURCE AND MEANS FOR STOPPING SAID COUNT IN ACCORDANCE WITH THE OUTPUT OF SAID PEAK DETECTOR, SAID COUNT INDICATING THE SWITCH POSITION CORRESPONDING WITH THE FREQUENCY OF SAID SOURCE.
References Cited (Backward Citations)
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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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |