Patent US3566672A successfully refreshed from Google Patents.
US3566672A
Expired / Lapsed
US
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Heated chemical conversion filter assembly for aerosol analysis
Assignee: United States Department of the Army
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Filing: 1967-06-15
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Granted: 1971-03-02
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Expires: 1987-06-15
Abstract
Abstract IMPROVED HEATER MEANS-PREFILTER ASSEMBLY AND METHOD FOR UTILIZATION IN NERVE GAS DETECTION DEVICES, WHEREBY AIR CONTAINING AEROSOL IS SAMPLED, THE AIR SAMPLE IS PASSED OVER A PREFILTER ELEMENT TO WET THE PREFILTER ELEMENT SURFACES WITH AEROSOL, AND THE SURFACE OF THE PREFILTER ELEMENT IS HEATED BY AN ISOLATED HEATER MENAS FROM THE NONACTIVE SIDE TO CONVERT THE AEROSOL PARTICLES ON THE PREFILTER ACTIVE SURFACE TO VAPOR ANALOG TO PASS TO A VAPOR DETECTING MEANS.
Inventors
- 👤 Hugh R Corlon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:27
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/28; G01N1/40; G01N15/00; G01N15/06; G01N15/0606; G01N15/0618
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |