Patent US2632303A successfully refreshed from Google Patents.
US2632303A
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Hot gas defrosting means for refrigerating systems
Assignee: C V Hill & Co Inc
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Filing: 1949-08-09
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Granted: 1953-03-24
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Expires: 1969-08-09
Abstract
No abstract record available.
Inventors
- 👤 Victor W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:19
CPC Classifications
F; F25; F25B; F25B47/00; F25B47/02; F25B47/022; F25B5/00; F25B5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CH59500A
Cited
US1779409A
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US1920505A
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US2077296A
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US2081883A
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US2323511A
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US2384210A
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US2433574A
Cited
US2446946A
Cited
US2440146A
Cited
US2530440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |