Patent US3299063A successfully refreshed from Google Patents.
US3299063A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Derivatives of pyrazine
Assignee: Merck and Co Inc
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Filing: 1965-10-04
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Granted: 1967-01-17
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Expires: 1985-10-04
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward J Cragoe
- 👤 James H Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:47
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/20; C07D239/22; B; B02; B02C; B02C17/00; B02C17/18; B02C21/00; C07D233/00; C07D233/54; C07D233/66; C07D233/72; C07D241/00; C07D241/02; C07D241/06; C07D241/08; C07D241/10; C07D241/14; C07D241/24; C07D241/26; C07D265/00; C07D265/28; C07D265/30; C07D265/32; C07D265/33; C09; C09B; C09B23/00; C09B23/14; C09B23/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
THE METHOD COMPRISING THE REACTION OF A PRODUCT SELECTED FROM THE 3-AMINO-5-X-6-HALOPYRAZINONITRILE, AN ALKYL 3-AMINO-5-X-6-HALOPYRAZINTHIOIMADATE AND AN ALKYL 3-AMINO-5-X-6-HALOPRYAZINIMIDATE HYDROCHLORIDE WITH 2AMINO-2-IMIDAZOLINE TO FORM 2-(3-AMINO-5-X-6-HALOPYRAZINAMIDINO)-2-IMIDAZOLINE IN A LOWER ALKANOL WITH MODERATE HEATING WHEREIN IN EACH OF THE FOREGOING PRODUCTS X IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, CHLORO, BROMO, LOWER-ALKYL, PHENYL-LOWER ALKYL, LOWER ALKOXY, PHENYL-LOWER ALKYOXY, LOWER ALKYLTHIO, PHENYLLOWER ALKYLTHIO, PHENYL, LOWER ALKYLPHENYUL, HALOPHENYL, AND AN AMINO HAVING THE STRUCTURE R1R2N- WHEREIN R1 AND R2 SEPARATELY IS SELECTED FROM TEH GROUP CONSISTING OF HYDROGEN, LOWER ALKOXY, PHENYL, LOWER ALKYLPHENYL, HALOPHENYL, LOWER ALKYL, HYDROXY LOWER ALKYL, HALO LOWER HALOPHENYL, LOWER ALKYL, HYDROXY LOWER ALKYL, HALO LOWER ALKYL, LOWER (CYCLOALKYLALKYL) WHERE THE CYCLOALKYL MOIETY HAS FROM 3 TO 6 NUCLEAR CARBON ATOMS, LOWER (ALKYHLAMINOALKYL), PHENYL LOWER ALKYL, LOWER(ALKOXYALKYL), HALOPHENYL LOWER ALKYL, PYRIDYL LOWER ALKYL, FURYL LOWER ALKYL, AND LOWER ALKENYL, LOWER ALICYCLIC HAVING FROM 3 TO 6 NUCLEAR CARBONS, AND TOGETHER WITH THE NITROGEN ATOM FORM
Claim 2
Independent Claim
155 words
THE METHOD COMPRISING THE REACTION OF A PRODUCT SELECTED FROM THE 3-AMINO-5-X-6-HALOPYRAZINONITRILE, AN ALKYL 3-AMINO-5-X-6-HALOPYRAZINTHIOIMADATE AND AN ALKYL 3-AMINO-5-X-6-HALOPRYAZINIMIDATE HYDROCHLORIDE WITH 2AMINO-2-IMIDAZOLINE TO FORM 2-(3-AMINO-5-X-6-HALOPYRAZINAMIDINO)-2-IMIDAZOLINE IN A LOWER ALKANOL WITH MODERATE HEATING WHEREIN IN EACH OF THE FOREGOING PRODUCTS X IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, CHLORO, BROMO, LOWER-ALKYL, PHENYL-LOWER ALKYL, LOWER ALKOXY, PHENYL-LOWER ALKYOXY, LOWER ALKYLTHIO, PHENYLLOWER ALKYLTHIO, PHENYL, LOWER ALKYLPHENYUL, HALOPHENYL, AND AN AMINO HAVING THE STRUCTURE R1R2N- WHEREIN R1 AND R2 SEPARATELY IS SELECTED FROM TEH GROUP CONSISTING OF HYDROGEN, LOWER ALKOXY, PHENYL, LOWER ALKYLPHENYL, HALOPHENYL, LOWER ALKYL, HYDROXY LOWER ALKYL, HALO LOWER HALOPHENYL, LOWER ALKYL, HYDROXY LOWER ALKYL, HALO LOWER ALKYL, LOWER (CYCLOALKYLALKYL) WHERE THE CYCLOALKYL MOIETY HAS FROM 3 TO 6 NUCLEAR CARBON ATOMS, LOWER (ALKYHLAMINOALKYL), PHENYL LOWER ALKYL, LOWER(ALKOXYALKYL), HALOPHENYL LOWER ALKYL, PYRIDYL LOWER ALKYL, FURYL LOWER ALKYL, AND LOWER ALKENYL, LOWER ALICYCLIC HAVING FROM 3 TO 6 NUCLEAR CARBONS, AND TOGETHER WITH THE NITROGEN ATOM FORM
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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |