US2685580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-isonicotinyl-2-aldosylhydrazine
Assignee: F Hoffmann La Roche AG
•
Filing: 1951-01-18
•
Granted: 1954-08-03
•
Expires: 1971-01-18
Abstract
No abstract record available.
Inventors
- 👤 Fox Herman Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:35
CPC Classifications
C; C07; C07H; C07H5/00; C07H5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
1 words
1-ISONICOTINYL-2-ALDOSYLHYDRAZINE.
Claim 2
Dependent Claim
1 words
1-ISONICOTINYL-2-ALDOSYLHYDRAZINE.
References Cited (Backward Citations)
US2233475A
Cited
US2355911A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-02 | 1958-02-01 | 1958-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-02 | 1962-02-01 | 1962-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-02 | 1966-02-01 | 1966-08-03 | $7700.00 | Window Closed / Lapsed |