US2958206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination evaporator-condenser plate assembly
Assignee: Individual
•
Filing: 1956-12-13
•
Granted: 1960-11-01
•
Expires: 1976-12-13
Abstract
No abstract record available.
Inventors
- 👤 James O Ewing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:27
CPC Classifications
F; F25; F25B; F25B39/00; F25B13/00; F25B2339/00; F25B2339/04; F25B2339/043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1985733A
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US2297219A
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US2363451A
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US2441270A
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US2496558A
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US2639189A
Cited
US2777300A
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US2750762A
Cited
US2848200A
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US2787130A
Cited
US2804773A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |