Patent US3238218A successfully refreshed from Google Patents.
US3238218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Certain alpha-pyridyl benz[b]cyclo-alkan-1-ones and derivatives
Assignee: BASF Corp
•
Filing: 1963-12-04
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Granted: 1966-03-01
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Expires: 1983-12-04
Abstract
No abstract record available.
Inventors
- 👤 Bencze William Laszlo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 04:41
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/44; C07D213/53; C07D213/46; C07D213/50; C07D213/54; C07D213/55; C07D213/57
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A MEMBER OF THE GROUP CONSISTING OF A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
12 words
A MEMBER OF THE GROUP CONSISTING OF A COMPOUND OF THE FORMULA
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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |