Patent US3888893A successfully refreshed from Google Patents.
US3888893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unsaturated amides
Assignee: Individual
•
Filing: 1973-02-16
•
Granted: 1975-06-10
•
Expires: 1993-02-16
Abstract
Abstract Unsaturated amides of the formula having utility as insect control agents and as intermediates for lactams.
Inventors
- 👤 John B Siddall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:20
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/34; C07D207/36; C07D207/38; C07D309/00; C07D309/02; C07D309/08; C07D309/10; C07D309/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
9 words
A COMPOUND SELECTED FROM THOSE OF THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
9 words
A COMPOUND SELECTED FROM THOSE OF THE FOLLOWING FORMULA:
Claim 3
Dependent Claim
60 words
A compound according to claim 1 wherein R1 is hydrogen or methyl; R2 is hydrogen; m is zero, one or two; n is two, three or four; each of R3, R4 and R5 is methyl or ethyl; R6 is hydrogen, methyl or ethyl and each of R7 and R10 is hydrogen or lower alkyl of one to three carbon atoms.
Claim 4
Dependent Claim
19 words
A compound according to claim 2 wherein each of R3, R4 and R5 is methyl and R6 is hydrogen.
Claim 5
Dependent Claim
14 words
A compound according to claim 3 wherein m is zero and n is two.
Claim 6
Dependent Claim
14 words
A compound according to claim 4 wherein R7 is ethyl and R10 is hydrogen.
Claim 7
Dependent Claim
14 words
A compound according to claim 3 wherein m is one and n is three.
Claim 8
Dependent Claim
14 words
A compound according to claim 6 wherein R7 is ethyl and R10 is hydrogen.
Claim 9
Dependent Claim
35 words
A compound according to claim 2 wherein m is zero; n is two; each of R3, R4 and R5 is methyl; R6 is hydrogen; and each of R7 and R10 is hydrogen, methyl or ethyl.
Claim 10
Dependent Claim
35 words
A compound according to claim 2 wherein R6 is hydrogen; m is one; n is three; each of R3, R4 and R5 is methyl and each of R7 and R10 is hydrogen, methyl or ethyl.
References Cited (Backward Citations)
US2435829A
Cited
US3281438A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-09 | 1978-12-09 | 1979-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-09 | 1982-12-09 | 1983-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-09 | 1986-12-09 | 1987-06-10 | $7700.00 | Window Closed / Lapsed |