Patent US3215407A successfully refreshed from Google Patents.
US3215407A
Expired / Lapsed
US
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Blending apparatus
Assignee: Phillips Petroleum Co
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Filing: 1960-12-19
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Granted: 1965-11-02
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Expires: 1980-12-19
Abstract
No abstract record available.
Inventors
- 👤 Robert F Dye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:13
CPC Classifications
B; B01; B01F; B01F23/00; B01F23/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US781406A
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US2215706A
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US2614093A
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US2459761A
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US2964083A
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US2969225A
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US2971951A
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US2954214A
Cited
US2963415A
Cited
US3060989A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |