US3353676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radial flow settling tank with complete volumetric transit for water and waste treatment
Assignee: Individual
•
Filing: 1966-05-05
•
Granted: 1967-11-21
•
Expires: 1986-05-05
Abstract
No abstract record available.
Inventors
- 👤 Hirsch A Adler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:29
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/0012; B01D21/0018; B01D21/0039; B01D21/0042; B01D21/02; B01D21/08; B01D21/24; B01D21/2405; B01D21/2416; B01D21/2427; B01D21/245; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/233; B01F23/2334; B01F23/23341
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1887177A
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US2140059A
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US2219706A
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US2527788A
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US2678914A
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GB847203A
Cited
US3152071A
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US3221889A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |