Patent US3277171A successfully refreshed from Google Patents.
US3277171A
Expired / Lapsed
US
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Cycloalkanecarboxamide herbicides
Assignee: Gulf Oil Corp
•
Filing: 1963-03-28
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Granted: 1966-10-04
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Expires: 1983-03-28
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Hopkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:32
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/72; C07D213/75; C07D277/00; C07D277/02; C07D277/20; C07D277/32; C07D277/38; C07D277/44; C07D277/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
CYCLOALKANE CARBOXAMIDE CONFORMING TO THE FORMULA:
Claim 2
Dependent Claim
6 words
CYCLOALKANE CARBOXAMIDE CONFORMING TO THE FORMULA:
References Cited (Backward Citations)
US2337846A
Cited
US2677705A
Cited
US2784226A
Cited
US2863752A
Cited
US2692282A
Cited
US2723192A
Cited
US2764478A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |