US2315514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of organic sulphinic acids
Assignee: EIDP Inc
•
Filing: 1938-11-22
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Granted: 1943-04-06
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Expires: 1958-11-22
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:30
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/34; C; C07; C07B; C07B45/00; C07B45/04; C07C; C07C313/00; C07C313/02; C07C313/04; C09; C09K; C09K23/00; C09K23/04; C10; C10M; C10M1/00; C10M1/08; C10M2201/00; C10M2201/02; C10M2201/087; C10M2219/00; C10M2219/04; C10N; C10N2040/00; C10N2040/46; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03; Y10S516/05
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) | 1946-04-05 | 1946-10-05 | 1947-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-04-05 | 1950-10-05 | 1951-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-04-05 | 1954-10-05 | 1955-04-06 | $7700.00 | Window Closed / Lapsed |