US3494109A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling tower apparatus
Assignee: BLAZER CORP
•
Filing: 1968-07-05
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Granted: 1970-02-10
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Expires: 1988-07-05
Abstract
No abstract record available.
Inventors
- 👤 Benjamin V Blazer
- 👤 Mahmoud S El-Tahry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:49
CPC Classifications
F; F28; F28C; F28C1/00; F04; F04D; F04D25/00; F04D25/02; F04D25/08; F04D25/12; F04D25/14; F28F; F28F25/00; F28F25/02; F28F25/04; F28F25/10; F28F25/12; 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) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |