Patent US3424781A successfully refreshed from Google Patents.
US3424781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of unsaturated aliphatic nitriles
Assignee: Distillers Co Yeast Ltd
•
Filing: 1965-12-16
•
Granted: 1969-01-28
•
Expires: 1985-12-16
Abstract
No abstract record available.
Inventors
- 👤 Clifford William Capp
- 👤 David James Hadley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:02
CPC Classifications
C; C07; C07C; C07C253/00; C07C253/24; C07C253/26; B; B01; B01J; B01J23/00; B01J23/16; B01J23/24; B01J23/26; B01J35/00; B01J35/40; B01J37/00; B01J37/02; B01J37/03; B01J37/031; B01J37/08; B01J2523/00; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |