US3894083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amides
Assignee: Sandoz AG
•
Filing: 1973-09-14
•
Granted: 1975-07-08
•
Expires: 1993-09-14
Abstract
Abstract The present invention relates to acyl hydrazone compounds of the formula WHEREIN R1, R2, R3 and Z are inter alia substituents and X and Y are inter alia bridging functions.
Inventors
- 👤 Kurt Hofer
- 👤 Guenther Tscheulin
- 👤 Anton Voykowitsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:07
CPC Classifications
C; C07; C07C; C07C251/00; C07C251/72; C08; C08K; C08K5/00; C08K5/16; C08K5/29; C08K5/30; C09; C09K; C09K15/00; C09K15/04; C09K15/20; C09K15/22
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
8 words
A compound of claim 1 of the formula
Claim 4
Dependent Claim
8 words
A compound of claim 1 of the formula
Claim 5
Dependent Claim
8 words
A compound of claim 3 of the formula
Claim 6
Dependent Claim
11 words
A compound of claim 1 wherein X is a direct linkage.
Claim 7
Dependent Claim
11 words
A compound of claim 2 wherein X is a direct linkage.
Claim 8
Dependent Claim
8 words
The compound of claim 4 of the formula
Claim 9
Dependent Claim
8 words
The compound of claim 4 of the formula
Claim 10
Dependent Claim
8 words
The compound of claim 4 of the formula
Claim 11
Dependent Claim
8 words
The compound of claim 4 of the formula
Claim 12
Dependent Claim
8 words
The compound of claim 4 of the formula
Claim 13
Dependent Claim
8 words
The compound of claim 4 of the formula
Claim 14
Dependent Claim
8 words
The compound of claim 4 of the formula
Claim 15
Dependent Claim
8 words
The compound of claim 4 of the formula
Claim 16
Dependent Claim
8 words
The compound of claim 4 of the formula
Claim 17
Dependent Claim
8 words
The compound of claim 4 of the formula
Claim 18
Dependent Claim
8 words
The compound of claim 4 of the formula
Claim 19
Dependent Claim
8 words
The compound of claim 4 of the formula
Claim 20
Dependent Claim
8 words
The compound of claim 4 of the formula
References Cited (Backward Citations)
US3780103A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-07 | 1979-01-06 | 1979-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-07 | 1983-01-06 | 1983-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-07 | 1987-01-06 | 1987-07-08 | $7700.00 | Window Closed / Lapsed |