US3468624A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the recovery of ammonium salts from waste streams in an acrylonitrile plant
Assignee: Standard Oil Co
•
Filing: 1966-02-14
•
Granted: 1969-09-23
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Expires: 1986-02-14
Abstract
No abstract record available.
Inventors
- 👤 Arthur F Miller
- 👤 Milena L Salehar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:18
CPC Classifications
C; C05; C05C; C05C3/00; C01; C01B; C01B25/00; C01B25/16; C01B25/26; C01B25/28; C01B25/38; C01B25/40; C01B25/405; C01C; C01C1/00; C01C1/18; C01C1/185; C01C1/24; C01C1/242; Y; Y10; Y10S; Y10S203/00; Y10S203/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3328266A
Cited
US2769686A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |