Patent US2869473A successfully refreshed from Google Patents.
US2869473A
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US
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Metering pump
Assignee: Akzo Nobel UK PLC
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Filing: 1954-03-15
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Granted: 1959-01-20
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Expires: 1974-03-15
Abstract
No abstract record available.
Inventors
- 👤 William H Kreamer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:11
CPC Classifications
F; F04; F04C; F04C2/00; F04C2/08; F04C2/082; F04C2/088; F04C2/086
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1863160A
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US1985748A
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US2281767A
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US2540235A
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US2498790A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |