US3236874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chlorocyclohexane carbonitriles
Assignee: Shell USA Inc
•
Filing: 1963-01-16
•
Granted: 1966-02-22
•
Expires: 1983-01-16
Abstract
No abstract record available.
Inventors
- 👤 Robinson Robert
- 👤 Fray Gordon Ian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:17
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/48; C07C; C07C23/00; C07C23/02; C07C23/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
THE COMPOUND OF THE FORMULA:
Claim 2
Dependent Claim
5 words
THE COMPOUND OF THE FORMULA:
References Cited (Backward Citations)
US2174568A
Cited
US2394871A
Cited
US2591415A
Cited
US2677705A
Cited
US2730531A
Cited
US2781393A
Cited
US2802019A
Cited
US2894959A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |