US2111808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dialytic process
Assignee: Solvay Process Co
•
Filing: 1936-04-24
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Granted: 1938-03-22
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Expires: 1956-04-24
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Saddington
- 👤 Arlie P Julien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:37
CPC Classifications
C; C01; C01D; C01D1/00; C01D1/04; C01D1/28; C01D1/38; B; B01; B01D; B01D61/00; B01D61/24; B01D61/243; B01D71/00; B01D71/06; B01D71/08; B01D71/10
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) | 1941-03-21 | 1941-09-20 | 1942-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-03-21 | 1945-09-20 | 1946-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-03-21 | 1949-09-20 | 1950-03-22 | $7700.00 | Window Closed / Lapsed |