Patent US3514905A successfully refreshed from Google Patents.
US3514905A
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Hydraulic method and apparatus for dispensing granular material under pressure
Assignee: MCKENZIE PUMP CORP
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Filing: 1967-07-03
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Granted: 1970-06-02
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Expires: 1987-07-03
Abstract
No abstract record available.
Inventors
- 👤 William L King
- 👤 John F King
- 👤 Loyal W James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:52
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/14; B05B7/1404; B05B7/1431; B05B7/1436; B24; B24C; B24C7/00; B24C7/0007; B24C7/0015; B24C7/003; C; C23; C23G; C23G3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US709448A
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US847269A
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US864471A
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US1727027A
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US2076414A
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US2200587A
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US2573917A
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US3084484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |