Patent US2987518A successfully refreshed from Google Patents.
US2987518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Certain 1h [4, 5-c]-imidazopyridines
Assignee: CIBA PHARMACENTICAL PRODUCTS I
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Filing: 1959-11-25
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Granted: 1961-06-06
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Expires: 1979-11-25
Abstract
No abstract record available.
Inventors
- 👤 Hoffmann Karl
- 👤 Hunger Alfred
- 👤 Rossi Alberto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:31
CPC Classifications
C; C07; C07D; C07D471/00; C07D471/02; C07D471/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF AZABENZIMIDAZOLES OF THE FORMULAE
Claim 2
Dependent Claim
12 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF AZABENZIMIDAZOLES OF THE FORMULAE
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) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |