Patent US2926187A successfully refreshed from Google Patents.
US2926187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-amino-3-(arylimino)-1, 1, 3-tricyanopropenes and process of preparation
Assignee: EIDP Inc
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Filing: 1958-05-06
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Granted: 1960-02-23
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Expires: 1978-05-06
Abstract
No abstract record available.
Inventors
- 👤 Melby Lester Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:35
CPC Classifications
C; C07; C07C; C07C255/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A 2-AMINO-3-(ARYLIMINO)-1,1,3-TRICYANO-1-PROPENE WHEREIN THE ARYL GROUP IS AN AROMATIC RADICAL OF 6 TO 12 CARBON ATOMS, DIRECTLY BONDED BY NUCLEAR CARBON TO THE IMINO NITROGEN, SELECTED FROM THE GROUP CONSISTING OF HYDROCARBON, HYDROCARBON-OXYPHENYL, HALOHYDROCARBON AND N-HYROCARBON-AMINOPHENYL RADICALS.
Claim 2
Dependent Claim
37 words
A 2-AMINO-3-(ARYLIMINO)-1,1,3-TRICYANO-1-PROPENE WHEREIN THE ARYL GROUP IS AN AROMATIC RADICAL OF 6 TO 12 CARBON ATOMS, DIRECTLY BONDED BY NUCLEAR CARBON TO THE IMINO NITROGEN, SELECTED FROM THE GROUP CONSISTING OF HYDROCARBON, HYDROCARBON-OXYPHENYL, HALOHYDROCARBON AND N-HYROCARBON-AMINOPHENYL RADICALS.
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) | 1963-02-22 | 1963-08-24 | 1964-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-22 | 1967-08-24 | 1968-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-22 | 1971-08-24 | 1972-02-23 | $7700.00 | Window Closed / Lapsed |