US3555820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Decanting apparatus
Assignee: Hoechst AG
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Filing: 1969-06-03
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Granted: 1971-01-19
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Expires: 1989-06-03
Abstract
Abstract A DECANTING APPARATUS WITH HEAT EXCHANGER AND QUIESCENT CHAMBERS IS DESCRIBED. THE INLET CHAMBER IS CONNECTED VIA A PRODUCT CHAMBER OF A SPIRAL HEAT EXCHANGER TO A DISCHARGE CHAMBER DISPOSED ROUND THE HEAT EXCHANGER, THE SAID PRODUCT CHAMBER BEING NARROW AS COMPARED TO ITS HEIGHT AND BEING ARRANGED IN SEVERAL TURNS ROUND THE INLET CHAMBER.
Inventors
- 👤 Gerhard Cramer
- 👤 Gunter Heck
- 👤 Egon Malow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:58
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; B01D17/0208; B01D17/0211; B01D17/04; B01D17/042; B01D19/00; B01D19/0042; B01D19/0052; B01D19/0057; B01D21/00; B01D21/003; B01D21/0039; B01D21/0042; B01D21/009; B01D21/02
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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |