Patent US3171027A successfully refreshed from Google Patents.
US3171027A
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Infrared atmospheric contamination detector system with the detector interrupted at a sub-harmonic frequency of the source
Assignee: Leesona Corp
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Filing: 1961-06-26
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Granted: 1965-02-23
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Expires: 1981-06-26
Abstract
No abstract record available.
Inventors
- 👤 Wallack Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:23
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/31; G01N21/35; G01N21/3504; G01N21/314; G01N21/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
AN ATMOSPHERIC CONTAMINANT DETECTION SYSTEM COMPRISING AN INFRARED SOURCE, MEANS BEAMING THE ENERGY FROM SAID SOURCE INTO A SINGLE PATH, MEANS IN SAID PATH FOR PERIODICALLY INTERRUPTING THE RAYS FROM SAID SOURCE DETECTOR MEANS LOCATED IN SAID PATH INCLUDING AN ELECTRICAL SYSTEM FOR RECEIVING ENERGY FROM SAID SOURCE AND TRANSLATING SAME INTO ELECTRICAL SIGNALS, AND A FILTER CHOPPER MOVABLY MOUNTED IN SAID PATH RELATIVE TO THE PATH OF THE RAYS BETWEEN SAID SOURCE AND SAID DETECTOR MEANS, SAID
Claim 2
Dependent Claim
78 words
AN ATMOSPHERIC CONTAMINANT DETECTION SYSTEM COMPRISING AN INFRARED SOURCE, MEANS BEAMING THE ENERGY FROM SAID SOURCE INTO A SINGLE PATH, MEANS IN SAID PATH FOR PERIODICALLY INTERRUPTING THE RAYS FROM SAID SOURCE DETECTOR MEANS LOCATED IN SAID PATH INCLUDING AN ELECTRICAL SYSTEM FOR RECEIVING ENERGY FROM SAID SOURCE AND TRANSLATING SAME INTO ELECTRICAL SIGNALS, AND A FILTER CHOPPER MOVABLY MOUNTED IN SAID PATH RELATIVE TO THE PATH OF THE RAYS BETWEEN SAID SOURCE AND SAID DETECTOR MEANS, SAID
References Cited (Backward Citations)
US2678581A
Cited
US2775160A
Cited
US2926253A
Cited
US2951939A
Cited
US2930893A
Cited
US3103586A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |