US3492324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quaternary salts of tertiary amines
Assignee: ICI Organics Inc
•
Filing: 1966-09-07
•
Granted: 1970-01-27
•
Expires: 1986-09-07
Abstract
No abstract record available.
Inventors
- 👤 Peter Blackman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 00:47
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/402; D06M13/405; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/07; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03; Y10S516/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |