US3042672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chschacn
Assignee: —
•
Filing: —
•
Granted: 1962-07-03
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Expires: 1979-07-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:37
CPC Classifications
C; C07; C07D; C07D251/00; C07D251/02; C07D251/12; C07D251/26; C07D251/30; C07D251/34
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
54 words
A PROCESS FOR PRODUCING 3-AMINOPROPYL ISOCYANURATES WHICH COMPRISES REACTING A METERIAL SELECTED FROM THE GROUP CONSISTING OF BIS-(2-CYANOETHYL) ISOCYANURATE AND TRIS(2-CYANOETHYL) ISOCYANURATE WITH HYDROGEN AND AMMONIA IN THE PRESENCE OF A METALLIC HYDROGENATION CATALYST SELECTED FROM THE GROUP CONSISTING OF NICKEL, PLATINUM, PALLADIUM, COBALT, IRON AND COPPER AT TEMPERATURE OF ABOUT 70* TO 180*C.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-02 | 1966-01-01 | 1966-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-02 | 1970-01-01 | 1970-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-02 | 1974-01-01 | 1974-07-03 | $7700.00 | Window Closed / Lapsed |