Patent US2665628A successfully refreshed from Google Patents.
US2665628A
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Apparatus for treating liquids
Assignee: Cherry Burrell Corp
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Filing: 1948-10-22
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Granted: 1954-01-12
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Expires: 1968-10-22
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Boileau
- 👤 Charles J Rayman
- 👤 Francis S Board
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:49
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/40; A23B2/48; Y; Y10; Y10S; Y10S99/00; Y10S99/10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/8593; Y10T137/877; Y10T137/87829; Y10T137/87837
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |