US2744103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid, stable diazonium compounds and process of preparing the same
Assignee: Hoechst AG
•
Filing: 1954-07-01
•
Granted: 1956-05-01
•
Expires: 1974-07-01
Abstract
No abstract record available.
Inventors
- 👤 Koch Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:30
CPC Classifications
C; C09; C09B; C09B43/00; C07; C07C; C07C43/00; C07C43/02; C07C43/257; C07C43/29; C09B29/00; C09B29/06; C09B29/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
9 words
THE DIAZONIUM COMPOUNDS CORRESPONDING TO THE FOLLOWING GENERAL FORMULA:
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) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |