Patent US2972057A successfully refreshed from Google Patents.
US2972057A
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US
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Assignee: Dole Refrigerating Co
•
Filing: 1957-03-13
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Granted: 1961-02-14
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Expires: 1977-03-13
Abstract
No abstract record available.
Inventors
- 👤 Andrew P Boehmer
- 👤 William E Lauterbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:33
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE19848E
Cited
US1866368A
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US2089512A
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US2239804A
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US2199601A
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US2650755A
Cited
US2677798A
Cited
US2747108A
Cited
US2801793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-14 | 1964-08-15 | 1965-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-14 | 1968-08-15 | 1969-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-14 | 1972-08-15 | 1973-02-14 | $7700.00 | Window Closed / Lapsed |