US2258772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of recovering chlorine from nitrosyl chloride-containing gases
Assignee: Solvay Process Co
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Filing: 1938-11-04
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Granted: 1941-10-14
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Expires: 1958-11-04
Abstract
No abstract record available.
Inventors
- 👤 William C Klingelhoefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:33
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/45; C01B17/4507; C01B17/4538; C01B17/4546; C01B21/00; C01B21/082; C01B21/083; C01B21/084; C01B21/0842; C01B21/0846; C01B7/00; C01B7/01; C01B7/07; C01B7/0743
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) | 1944-10-13 | 1945-04-14 | 1945-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-10-13 | 1949-04-14 | 1949-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-10-13 | 1953-04-14 | 1953-10-14 | $7700.00 | Window Closed / Lapsed |