Patent US2532074A successfully refreshed from Google Patents.
US2532074A
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US
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Protective apparatus for refrigerating systems
Assignee: KONSTANTY P PUCHLOWSKI
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Filing: 1946-11-19
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Granted: 1950-11-28
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Expires: 1966-11-19
Abstract
No abstract record available.
Inventors
- 👤 Poukhalo-Poukhlovsky Alexis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:07
CPC Classifications
F; F25; F25B; F25B49/00; F25B49/005; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/7287; Y10T137/7313; Y10T137/7316; Y10T137/7319; Y10T137/7722; Y10T137/7723
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1947574A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-27 | 1954-05-29 | 1954-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-27 | 1958-05-29 | 1958-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-27 | 1962-05-29 | 1962-11-28 | $7700.00 | Window Closed / Lapsed |