Patent US3299700A successfully refreshed from Google Patents.
US3299700A
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US
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Directional air sampler
Assignee: Kennecott Corp
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Filing: 1964-04-02
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Granted: 1967-01-24
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Expires: 1984-04-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Allison B Stout
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:44
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/0004; G01N33/0009; G01N33/0011; G01N1/00; G01N1/02; G01N1/22; G01N1/2202; G01N2001/222; G01N2001/2223
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
133 words
A DIRECTIONAL AIR SAMPLER, COMPRISING A PLURALITY OF CONTAINERS FOR LIQUID REAGENT ADAPTED TO ABSORB IMPURITIES FROM AN AIR SAMPLE, EACH CONTAINER HAVING AN AIR INLET AND AN AIR OUTLET; A WIND DIRECTION INDICATOR; MEANS TO SELECTIVELY CONTROL FLOW OF ATMOSPHERIC AIR THROUGH REAGENT IN THE CONTAINERS IN ACCORDANCE WITH THE POSITION OF THE WIND DIRECTION INDICATOR; VALVE MEANS FOR PERIODICALLY DISCHARGING SPENT REAGENT FROM THE CONTAINERS; POWER CIRCUIT MEANS RESPONSIVE TO COMPLETION OF A SAMPLING OPERATION TO OPERATE SAID VALVE MEANS TO DISCHARGE SAID SPENT REAGENT AND TO PREPARE SAID CONTAINERS FOR RECEIVING ADDITIONAL REAGENT; AND MEANS FOR SEGREGATING FROM ONE ANOTHER THE PERIODIC DISCHARGES OF SPENT REAGENT, THE SEGREGATING MEANS INCLUDING A RACK; A PLURALITY OF ROWS OF SAMPLE TUBES SUPPORTED BY SAID RACK, ONE ROW BEING PROVIDED FOR EACH OF
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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) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |