Patent US3337570A successfully refreshed from Google Patents.
US3337570A
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US
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Substituted nicotinic acids and method for the manufacture thereof
Assignee: Merck Sharp & Dohme LLC
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Filing: 1965-10-23
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Granted: 1967-08-22
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Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Margaret H Sherlock
- 👤 Sperber Nathan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:49
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/56; A61K31/57; A61K31/33; A61K31/395; A61K31/435; A61K31/44; A61K31/455; A61K31/60; C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/78; C07D213/79; C07D213/80
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A COMPOUND OF THE GROUP CONSISTING OF ANILINO NICTOINIC ACIDS HAVING THE FORMULA:
Claim 2
Dependent Claim
13 words
A COMPOUND OF THE GROUP CONSISTING OF ANILINO NICTOINIC ACIDS HAVING 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) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |