Patent US3269189A successfully refreshed from Google Patents.
US3269189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for elutriating and measuring fine solid particles
Assignee: Individual
•
Filing: 1964-12-18
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Granted: 1966-08-30
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Expires: 1984-12-18
Abstract
No abstract record available.
Inventors
- 👤 Gaines W Monk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:46
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/02; G01N15/0255
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
106 words
APPARATUS FOR SEPARATING DUST PARTICLES COMPRISING: AN ENCLOSE CHAMBER; MATERIAL SUPPORT MEANS IN SAID CHAMBER TO SUPPORT A QUANTITY OF DUST PARTICLES; MEANS TO INTRODUCE A GAS INTO SAID QUANTITY OF DUST PARTICLES; MEANS TO REGULATE THE RATE OF FLOW OF GAS INTO SAID QUANTITY OF DUST PARTICLES TO SEPARATE OUT LIGHTER OR LESS DENSE PARTICLES AT LOW GAS FLOW OR HEAVIER OR MORE DENSE PARTICLES AT HIGHER GAS FLOW; MEANS TO DETERMINE THE QUANTITY OF DUST PARTICLES SEPARATED OUT FROM SAID QUANTITY; AND MEANS TO PRODUCE A VACUUM IN SAID CHAMBER WHEREBY SAID DUST PARTICLES WILL FALL QUICKLY AFTER BEING SEPARATED OUT FROM SAID QUANTITY.
References Cited (Backward Citations)
US1186525A
Cited
US3144773A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |