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US2846438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nu-(beta-diethylaminoethyl) isonicotinamide
Assignee: Olin Corp
•
Filing: 1954-03-15
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Granted: 1958-08-05
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Expires: 1974-03-15
Abstract
No abstract record available.
Inventors
- 👤 Harry L Yale
- 👤 Bernstein Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:58
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/78; C07D213/81
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
11 words
THE PURE, ISOMER FREE MONOHYDROCHLORIDE OF N-(BDIETHYLAMINOETHYL)ISONICOTINAMIDE, MELTING AT ABOUT 106107*C.
Claim 2
Dependent Claim
11 words
THE PURE, ISOMER FREE MONOHYDROCHLORIDE OF N-(BDIETHYLAMINOETHYL)ISONICOTINAMIDE, MELTING AT ABOUT 106107*C.
Claim 3
Dependent Claim
11 words
THE PURE, ISOMER FREE DIHYDROCHLORIDE OF N-(BDIETHYLAMINOETHYL)ISONICOTINAMIDE, MELTING AT ABOUT 194196*C.
Claim 4
Dependent Claim
11 words
THE PURE, ISOMER FREE DIHYDROCHLORIDE OF N-(BDIETHYLAMINOETHYL)ISONICOTINAMIDE, MELTING AT ABOUT 194196*C.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |