US2634590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for cooling produce by use of reduced pressure
Assignee: Individual
•
Filing: 1950-02-28
•
Granted: 1953-04-14
•
Expires: 1970-02-28
Abstract
No abstract record available.
Inventors
- 👤 Melville W Beardsley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:06
CPC Classifications
F; F25; F25D; F25D31/00; A; A23; A23B; A23B2/00; A23B2/10; A23B2/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US222122A
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US1062184A
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US1295417A
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US1608874A
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US1756992A
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US1744890A
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US2304192A
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US2345204A
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US2402401A
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US2488839A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-13 | 1956-10-13 | 1957-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-13 | 1960-10-13 | 1961-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-13 | 1964-10-13 | 1965-04-14 | $7700.00 | Window Closed / Lapsed |