US2778203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioning system having a cooling tower or the like
Assignee: Individual
•
Filing: 1954-04-13
•
Granted: 1957-01-22
•
Expires: 1974-04-13
Abstract
No abstract record available.
Inventors
- 👤 William F R Griffith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:09
CPC Classifications
F; F24; F24F; F24F6/00; F24F6/02; F24F6/04; F28; F28C; F28C1/00; Y; Y02; Y02B; Y02B30/00; Y02B30/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
AT136889B
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US2118949A
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US2165979A
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US2157070A
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US2194711A
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US2233633A
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US2386826A
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US2414135A
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US2497389A
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US2631021A
Cited
US2655795A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-22 | 1960-07-23 | 1961-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-22 | 1964-07-23 | 1965-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-22 | 1968-07-23 | 1969-01-22 | $7700.00 | Window Closed / Lapsed |