US3459759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Certain substituted imidazo-(4,5-b or c)pyridines
Assignee: Shell USA Inc
•
Filing: 1966-11-09
•
Granted: 1969-08-05
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Expires: 1986-11-09
Abstract
No abstract record available.
Inventors
- 👤 Hans F W Rochling
- 👤 Karl-Heinz Buchel
- 👤 Friedrich W A G K Korte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:40
CPC Classifications
C; C07; C07D; C07D471/00; C07D471/02; C07D471/04; A; A01; A01N; A01N43/00; A01N43/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF AN IMIDAZOPYRIDINE HAVING ONE OF THE FORMULAE:
Claim 2
Dependent Claim
15 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF AN IMIDAZOPYRIDINE HAVING ONE OF THE FORMULAE:
References Cited (Backward Citations)
US3401030A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-04 | 1973-02-03 | 1973-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-04 | 1977-02-03 | 1977-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-04 | 1981-02-03 | 1981-08-05 | $7700.00 | Window Closed / Lapsed |