US2224355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of dissolving solid substances in liquids
Assignee: Scholtens Chemische Fabrieken NV
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Filing: 1937-12-15
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Granted: 1940-12-10
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Expires: 1957-12-15
Abstract
No abstract record available.
Inventors
- 👤 Fredrik Andre Moeller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:07
CPC Classifications
B; B01; B01D; B01D11/00; B01D11/02; B01F; B01F21/00; B01F21/20; B01F23/00; B01F23/50; B01F25/00; B01F25/80; B01F25/85; C; C08; C08B; C08B30/00; C08B30/12; C08B30/16
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) | 1943-12-10 | 1944-06-10 | 1944-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-12-10 | 1948-06-10 | 1948-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-12-10 | 1952-06-10 | 1952-12-10 | $7700.00 | Window Closed / Lapsed |