Patent US2712897A successfully refreshed from Google Patents.
US2712897A
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Steady flow centrifugal defoamer
Assignee: Individual
•
Filing: 1954-05-14
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Granted: 1955-07-12
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Expires: 1974-05-14
Abstract
No abstract record available.
Inventors
- 👤 Rert K Kusserow
- 👤 Willard E Bair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:16
CPC Classifications
B; B01; B01D; B01D19/00; B01D19/0042; B01D19/0052; A; A61; A61M; A61M1/00; A61M1/36; A61M1/3621; A61M1/3627; B01D19/02; B04; B04B; B04B11/00; B04B11/02; B04B15/00; B04B15/08; Y; Y10; Y10S; Y10S494/00; Y10S494/90
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) | 1958-07-11 | 1959-01-10 | 1959-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-11 | 1963-01-10 | 1963-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-11 | 1967-01-10 | 1967-07-12 | $7700.00 | Window Closed / Lapsed |