Patent US2575489A successfully refreshed from Google Patents.
US2575489A
Expired / Lapsed
US
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Dispenser unit
Assignee: Dole Valve Co
•
Filing: 1945-03-17
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Granted: 1951-11-20
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Expires: 1965-03-17
Abstract
No abstract record available.
Inventors
- 👤 Thomas B Chace
- 👤 Joseph A Reinhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:54
CPC Classifications
B; B67; B67D; B67D1/00; B67D1/08; B67D1/0857
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US212951A
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US1372135A
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US2121841A
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US2161293A
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US2267819A
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US2271437A
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US2420971A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |