Patent US2808243A successfully refreshed from Google Patents.
US2808243A
Expired / Lapsed
US
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Cooling tower
Assignee: Santa Fe Tank & Tower Co
•
Filing: 1954-12-13
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Granted: 1957-10-01
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Expires: 1974-12-13
Abstract
No abstract record available.
Inventors
- 👤 Jack M Slough
- 👤 Lichtenstein Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:18
CPC Classifications
F; F28; F28C; F28C1/00; Y; Y02; Y02B; Y02B30/00; Y02B30/70; Y10; Y10S; Y10S261/00; Y10S261/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2732190A
Cited
US1770657A
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US2066832A
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GB518373A
Cited
US2247514A
Cited
US2394755A
Cited
US2497389A
Cited
US2680603A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-30 | 1961-04-01 | 1961-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-30 | 1965-04-01 | 1965-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-30 | 1969-04-01 | 1969-10-01 | $7700.00 | Window Closed / Lapsed |