US2767192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ketone hydrazones
Assignee: Schenley Industries Inc
•
Filing: 1952-11-25
•
Granted: 1956-10-16
•
Expires: 1972-11-25
Abstract
No abstract record available.
Inventors
- 👤 Offe Hans-Albert
- 👤 Siefken Werner
- 👤 Domagk Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:46
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/78; C07D213/81
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
AS NEW CHEMOTHERAPEUTIC AGENTS, THE COMPOUNDS REPRESENTED BY THE FORMULA:
Claim 2
Dependent Claim
10 words
AS NEW CHEMOTHERAPEUTIC AGENTS, THE COMPOUNDS REPRESENTED BY THE FORMULA:
References Cited (Backward Citations)
US2703322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |