US2518202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum type water absorption refrigerating system
Assignee: Servel Inc
•
Filing: 1944-10-25
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Granted: 1950-08-08
•
Expires: 1964-10-25
Abstract
No abstract record available.
Inventors
- 👤 Bank The National City
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:15
CPC Classifications
F; F25; F25B; F25B15/00; F25B15/02; F25B15/06; F25B43/00; F25B43/04; F25B43/046; F25B2315/00; F25B2315/001; Y; Y02; Y02A; Y02A30/00; Y02A30/27; Y02B; Y02B30/00; Y02B30/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US942368A
Cited
US1890531A
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US2298924A
Cited
US2365797A
Cited
US2378177A
Cited
US2282504A
Cited
US2353859A
Cited
US2384861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-07 | 1954-02-06 | 1954-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-07 | 1958-02-06 | 1958-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-07 | 1962-02-06 | 1962-08-08 | $7700.00 | Window Closed / Lapsed |