US2386826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for treating fluid compositions
Assignee: Sylvania Industrial Corp
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Filing: 1942-01-10
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Granted: 1945-10-16
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Expires: 1962-01-10
Abstract
No abstract record available.
Inventors
- 👤 Roger N Wallach
- 👤 Manor Braircliff
- 👤 Zender Justin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:30
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/36; B01D61/362; A; A23; A23C; A23C1/00; A23C1/12; A23F; A23F5/00; A23F5/24; A23F5/28; A23F5/285
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) | 1948-10-15 | 1949-04-16 | 1949-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-10-15 | 1953-04-16 | 1953-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-10-15 | 1957-04-16 | 1957-10-16 | $7700.00 | Window Closed / Lapsed |