US2100401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of ortho-and peri-aryl dinitriles
Assignee: Imperial Chemical Industries Ltd
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Filing: 1936-08-04
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Granted: 1937-11-30
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Expires: 1956-08-04
Abstract
No abstract record available.
Inventors
- 👤 Linstead Reginald Patrick
- 👤 Lowe Arthur Reginald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:13
CPC Classifications
C; C07; C07C; C07C253/00; C07C253/22; C07C253/20
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) | 1940-11-29 | 1941-05-31 | 1941-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-11-29 | 1945-05-31 | 1945-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-11-29 | 1949-05-31 | 1949-11-30 | $7700.00 | Window Closed / Lapsed |