US2760764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling towers
Assignee: WILLIAM J ROONEY
•
Filing: 1953-05-27
•
Granted: 1956-08-28
•
Expires: 1973-05-27
Abstract
No abstract record available.
Inventors
- 👤 Orzel Elly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:54
CPC Classifications
F; F28; F28C; F28C1/00; F28C1/02; 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)
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US265974A
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GB190904570A
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US1139053A
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US1367701A
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US1822755A
Cited
US1929411A
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US2083468A
Cited
US2363578A
Cited
GB668293A
Cited
US2609288A
Cited
US2661197A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |