Patent US2439487A successfully refreshed from Google Patents.
US2439487A
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Method of precooling the lading of refrigerator cars comprising the reversal of air flow
Assignee: CLARENCE J LOFTUS
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Filing: 1945-03-16
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Granted: 1948-04-13
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Expires: 1965-03-16
Abstract
No abstract record available.
Inventors
- 👤 Frank J Reilly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:03
CPC Classifications
F; F25; F25D; F25D15/00; B; B61; B61D; B61D27/00; B61D27/0018; B61D27/0027; F25D11/00; F25D11/003; F25D2317/00; F25D2317/06; F25D2317/068; F25D2317/0684
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US984553A
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US881733A
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US1030962A
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US2050597A
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US2293360A
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US2293316A
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US2265317A
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US2274162A
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US2370886A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-13 | 1951-10-13 | 1952-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-13 | 1955-10-13 | 1956-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-13 | 1959-10-13 | 1960-04-13 | $7700.00 | Window Closed / Lapsed |