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US2638247A
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Injection of additives into fluids being dispensed
Assignee: HANCOCK OIL Co
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Filing: 1950-07-29
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Granted: 1953-05-12
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Expires: 1970-07-29
Abstract
No abstract record available.
Inventors
- 👤 Newcomb D Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:02
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/74; B67D7/741
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1733423A
Cited
US1720326A
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US1745141A
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US1763335A
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US1964028A
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US1985918A
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US2365192A
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US2538111A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-11 | 1956-11-10 | 1957-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-11 | 1960-11-10 | 1961-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-11 | 1964-11-10 | 1965-05-12 | $7700.00 | Window Closed / Lapsed |