US2720084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Energy storage for air conditioning systems
Assignee: Individual
•
Filing: 1953-06-09
•
Granted: 1955-10-11
•
Expires: 1973-06-09
Abstract
No abstract record available.
Inventors
- 👤 James G Hailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:24
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/20; G05D16/2006; G05D16/208; F; F24; F24F; F24F5/00; F25; F25D; F25D16/00; Y; Y10; Y10S; Y10S62/00; Y10S62/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1007178A
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US1891713A
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US2050002A
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US2158792A
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US2107088A
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US2193838A
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US2170993A
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US2228834A
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US2323840A
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US2367305A
Cited
US2553979A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-10 | 1959-04-11 | 1959-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-10 | 1963-04-11 | 1963-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-10 | 1967-04-11 | 1967-10-11 | $7700.00 | Window Closed / Lapsed |