US2745826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing thiourea complexes
Assignee: Olin Corp
•
Filing: 1953-12-16
•
Granted: 1956-05-15
•
Expires: 1973-12-16
Abstract
No abstract record available.
Inventors
- 👤 Semenoff Serge
- 👤 Morris A Dolliver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:05
CPC Classifications
C; C07; C07C; C07C335/00; C07C335/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
THE METHOD WHICH COMPRISES INTERACTING A 2-(HALO)PYRIDINE COMPOUND OF THE GENERAL FORMULA:
Claim 2
Independent Claim
12 words
THE METHOD WHICH COMPRISES INTERACTING A 2-(HALO)PYRIDINE COMPOUND OF THE GENERAL FORMULA:
References Cited (Backward Citations)
US2295606A
Cited
US2640051A
Cited
US2642423A
Cited
US2653147A
Cited
US2681333A
Cited
US2681904A
Cited
US2686786A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |