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Patent US3530924A successfully refreshed from Google Patents.
US3530924A
Expired / Lapsed
US
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Crystallization method and device
Assignee: Sulzer Escher Wyss GmbH
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Filing: 1968-02-29
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Granted: 1970-09-29
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Expires: 1988-02-29
Abstract
No abstract record available.
Inventors
- 👤 Hans Domning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:07
CPC Classifications
C; C05; C05D; C05D1/00; C05D1/005; B; B01; B01D; B01D9/00; B01D9/0018; B01D9/0022; B01D9/0036; B01D9/004; B01D9/0059; C01; C01C; C01C1/00; C01C1/24; C01C1/248; C01D; C01D3/00; C01D3/22
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) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |