US3389573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerant condensate circuit in multiple-effect absorption refrigeration systems
Assignee: Carrier Corp
•
Filing: 1967-05-31
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Granted: 1968-06-25
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Expires: 1987-05-31
Abstract
No abstract record available.
Inventors
- 👤 James A Papapanu
- 👤 Jr Frank N Decker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:37
CPC Classifications
F; F25; F25B; F25B15/00; F25B15/008; 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)
US2283213A
Cited
US2755635A
Cited
US3266266A
Cited
US3287928A
Cited
US3316727A
Cited
US3273350A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |