Patent US2969225A successfully refreshed from Google Patents.
US2969225A
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US
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Detention and mixing apparatus for treating waste liquids
Assignee: Individual
•
Filing: 1955-02-09
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Granted: 1961-01-24
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Expires: 1975-02-09
Abstract
No abstract record available.
Inventors
- 👤 Harry N Jenks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:10
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/1278; C02F3/1284; C02F1/00; C02F1/68; C02F1/685; C02F1/688; C02F3/30; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US138089A
Cited
US353775A
Cited
US1301544A
Cited
US1902078A
Cited
US1989589A
Cited
US2326303A
Cited
US2694043A
Cited
US2713028A
Cited
US2677657A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-24 | 1964-07-25 | 1965-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-24 | 1968-07-25 | 1969-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-24 | 1972-07-25 | 1973-01-24 | $7700.00 | Window Closed / Lapsed |