US3840600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2,6-disubstituted phenyl hydrazides
Assignee: Sandoz AG
•
Filing: 1972-09-06
•
Granted: 1974-10-08
•
Expires: 1992-09-06
Abstract
Abstract 1. THE COMPOUND WHICH IS CROTONIC ACID, 2-(2,6DICHLOROPHENYL)HYDRAZIDE.
Inventors
- 👤 M Eberle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:02
CPC Classifications
C; C07; C07C; C07C243/00; C07C243/24; C07C243/26; C07C243/30; C07C243/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
THE COMPOUND WHICH IS CROTONIC ACID, 2-(2,6DICHLOROPHENYL)HYDRAZIDE.
Claim 2
Dependent Claim
7 words
THE COMPOUND WHICH IS CROTONIC ACID, 2-(2,6DICHLOROPHENYL)HYDRAZIDE.
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) | 1977-10-07 | 1978-04-08 | 1978-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-07 | 1982-04-08 | 1982-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-07 | 1986-04-08 | 1986-10-08 | $7700.00 | Window Closed / Lapsed |