US2606008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling tower
Assignee: Hudson Engineering Corp
•
Filing: 1948-10-25
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Granted: 1952-08-05
•
Expires: 1968-10-25
Abstract
No abstract record available.
Inventors
- 👤 Bach Neal B Lau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:30
CPC Classifications
F; F28; F28C; F28C1/00; F28C1/14; 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)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-05 | 1956-02-04 | 1956-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-05 | 1960-02-04 | 1960-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-05 | 1964-02-04 | 1964-08-05 | $7700.00 | Window Closed / Lapsed |