US3367413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling towers
Assignee: English Electric Co Ltd
•
Filing: 1966-01-18
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Granted: 1968-02-06
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Expires: 1986-01-18
Abstract
No abstract record available.
Inventors
- 👤 Forster Vincent Trevor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:11
CPC Classifications
F; F28; F28C; F28C1/00; F28C1/12; F28B; F28B1/00; F28B1/06; F28F; F28F25/00; F28F25/10; F28F25/12; Y; Y02; Y02B; Y02B30/00; Y02B30/70; Y10; Y10S; Y10S165/00; Y10S165/092; Y10S165/10; Y10S165/90; 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) | 1971-02-05 | 1971-08-07 | 1972-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-05 | 1975-08-07 | 1976-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-05 | 1979-08-07 | 1980-02-06 | $7700.00 | Window Closed / Lapsed |