Patent US2505461A successfully refreshed from Google Patents.
US2505461A
Expired / Lapsed
US
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Alkylcyclohexylmethylpyridines
Assignee: Reilly Tar and Chemical Corp
•
Filing: 1947-08-04
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Granted: 1950-04-25
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Expires: 1967-08-04
Abstract
No abstract record available.
Inventors
- 👤 Francis E Cislak
- 👤 Frank A Karnatz
- 👤 Kelley Kathryn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:52
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/06; C07D213/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
THE CLASS OF COMPOUNDS CONSISTING OF 2ALKYLCYCLOHEXYLMETHYLPYRIDINES AND 4 - ALKYLEYCLOHEXYLMETHYLPYRIDINES HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
15 words
THE CLASS OF COMPOUNDS CONSISTING OF 2ALKYLCYCLOHEXYLMETHYLPYRIDINES AND 4 - ALKYLEYCLOHEXYLMETHYLPYRIDINES HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
US2247266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-24 | 1953-10-24 | 1954-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-24 | 1957-10-24 | 1958-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-24 | 1961-10-24 | 1962-04-25 | $7700.00 | Window Closed / Lapsed |