Patent US3226414A successfully refreshed from Google Patents.
US3226414A
Expired / Lapsed
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Organic isocyanates stabilized with dinitrogen compounds
Assignee: Olin Corp
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Filing: 1963-03-20
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Granted: 1965-12-28
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Expires: 1983-03-20
Abstract
No abstract record available.
Inventors
- 👤 Smith Eric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:23
CPC Classifications
C; C07; C07C; C07C265/00; C07C265/14; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
AN ORGANIC ISOCYANATE CONTAINING A STABILIZING PROPORTION OF A DINITROGEN COMPOUND SELECTED FROM THE GROUP CONSISTING OF CYANAMIDE, METHYL CYANAMIDE, IMIDAZOLE, AND METHYL IMIDAZOLE.
Claim 2
Dependent Claim
24 words
AN ORGANIC ISOCYANATE CONTAINING A STABILIZING PROPORTION OF A DINITROGEN COMPOUND SELECTED FROM THE GROUP CONSISTING OF CYANAMIDE, METHYL CYANAMIDE, IMIDAZOLE, AND METHYL IMIDAZOLE.
References Cited (Backward Citations)
US3050520A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |