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Patent US3427252A successfully refreshed from Google Patents.
US3427252A
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Apparatus for the control of foam formation during the processing of liquids
Assignee: Veolia WTS USA Inc
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Filing: 1966-03-31
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Granted: 1969-02-11
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Expires: 1986-03-31
Abstract
No abstract record available.
Inventors
- 👤 Philip J Gaughan
- 👤 George E Dorwart
- 👤 John B Lord
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:38
CPC Classifications
C; C01; C01B; C01B25/00; C01B25/01; B; B01; B01D; B01D19/00; B01D19/02; C01B25/16; C01B25/18; Y; Y10; Y10S; Y10S159/00; Y10S159/04; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0329; Y10T137/034; Y10T137/2931; Y10T137/2984; Y10T137/2987; Y10T137/7287; Y10T137/7306
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) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |