Patent US2406947A successfully refreshed from Google Patents.
US3138369A
Expired / Lapsed
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Blending apparatus
Assignee: Phillips Petroleum Co
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Filing: 1962-12-07
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Granted: 1964-06-23
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Expires: 1982-12-07
Abstract
No abstract record available.
Inventors
- 👤 Richard J Bennett
- 👤 William A Keene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:31
CPC Classifications
B; B01; B01F; B01F25/00; B01F25/80; B01F25/82; B01F25/821
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
80 words
SOLIDS BLENDING APPARATUS COMPRISING, IN COMBINATION: (A) A CHAMBER HAVING A BOTTOM OUTLET; (B) A FLOOR MEMBER IN A LOWER PART OF SAID CHAMBER AND SPACED FROM THE BOTTOM OF SAID CHAMBER; (C) AT LEAST ONE UPWARDLY EXTENDING CONDUIT POSITIONED WITHIN SAID CHAMBER TO PROVIDE A PASSAGEWAY THROUGH SAID FLOOR MEMBER; (D) AT LEAST ONE OPENING IN EACH CONDUIT AT A LEVEL ABOVE SAID FLOOR MEMBER; AND (E) AT LEAST ONE OPENING IN SAID FLOOR MEMBER SPACED FROM SAID CONDUIT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |