US3084918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrugated packing for counterflow cooling towers
Assignee: Fluor Corp
•
Filing: 1960-04-21
•
Granted: 1963-04-09
•
Expires: 1980-04-21
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Kohl
- 👤 Alfred L Fuller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:54
CPC Classifications
F; F28; F28F; F28F25/00; F28F25/02; F28F25/08; F28F25/087; B; B01; B01J; B01J2219/00; B01J2219/32; B01J2219/322; B01J2219/32203; B01J2219/32255; B01J2219/32258; Y; Y10; Y10S; Y10S261/00; Y10S261/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190424467A
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US869747A
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GB304753A
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DE678100C
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US2376341A
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DE846092C
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GB657550A
Cited
US2793017A
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US2809818A
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US2858119A
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US2986379A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |