US2868797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4-nitropyridine-alkanol, n-oxides
Assignee: Reilly Tar and Chemical Corp
•
Filing: 1958-05-09
•
Granted: 1959-01-13
•
Expires: 1978-05-09
Abstract
No abstract record available.
Inventors
- 👤 Francis E Cislak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:20
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/72; C07D213/73; C07D213/89
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
4-NITROPYRIDINE-ALKANOL, N-OXIDES HAVING THE FOLLOWING GENERAL FORMULA:
Claim 2
Dependent Claim
7 words
4-NITROPYRIDINE-ALKANOL, N-OXIDES HAVING THE FOLLOWING GENERAL 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) | 1962-01-12 | 1962-07-14 | 1963-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-12 | 1966-07-14 | 1967-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-12 | 1970-07-14 | 1971-01-13 | $7700.00 | Window Closed / Lapsed |