Patent US3101335A successfully refreshed from Google Patents.
US3101335A
Expired / Lapsed
US
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Diureidotriazines and process for making
Assignee: Pennwalt Corp
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Filing: 1960-03-01
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Granted: 1963-08-20
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Expires: 1980-03-01
Abstract
No abstract record available.
Inventors
- 👤 Francis L Scott
- 👤 Herbert Q Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:38
CPC Classifications
C; C07; C07D; C07D251/00; C07D251/02; C07D251/12; C07D251/26; C07D251/40; C07D251/54; C07D251/70; C08; C08G; C08G12/00; C08G12/02; C08G12/26; C08G12/30; C08G12/32
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
1 words
6-HYDROXY-2,4-DOIREODP-1,3,5-TRIAZINE.
Claim 2
Dependent Claim
1 words
6-HYDROXY-2,4-DOIREODP-1,3,5-TRIAZINE.
Claim 3
Dependent Claim
78 words
THE PROCESS OF HEATING AT A TEMPERATURE BETWEEN ABOUT 140* AND 250*C. A SOLID MIXTURE OF A POLYAMINO1,3,5-TRIAZINE CONTAINING AT LEAST TWO PRIMARY AMINO GROUPS ATTACHED TO CARBON ATOMS IN TE TRIAZINE RING AND A NITROGEN COMPOUND TAKEN FROM THE GROUP OF UREA AND BIURET, EXTRACTING THE REACTION PRODUCT WITH WATER, ADDING ADDITIONAL NITROGEN COMPOUND TO THE WATER-INSOLUBLE RESIDUE AND FURTHER HEATING THE MIXTURE AT 140* TO 250*C. WHEREBY AN INCREASED YIELD OF A DIUREIDOTRIAZINE PRODUCT IS FORMED.
Claim 4
Dependent Claim
78 words
THE PROCESS OF HEATING AT A TEMPERATURE BETWEEN ABOUT 140* AND 250*C. A SOLID MIXTURE OF A POLYAMINO1,3,5-TRIAZINE CONTAINING AT LEAST TWO PRIMARY AMINO GROUPS ATTACHED TO CARBON ATOMS IN TE TRIAZINE RING AND A NITROGEN COMPOUND TAKEN FROM THE GROUP OF UREA AND BIURET, EXTRACTING THE REACTION PRODUCT WITH WATER, ADDING ADDITIONAL NITROGEN COMPOUND TO THE WATER-INSOLUBLE RESIDUE AND FURTHER HEATING THE MIXTURE AT 140* TO 250*C. WHEREBY AN INCREASED YIELD OF A DIUREIDOTRIAZINE PRODUCT IS FORMED.
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) | 1966-08-19 | 1967-02-18 | 1967-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-19 | 1971-02-18 | 1971-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-19 | 1975-02-18 | 1975-08-20 | $7700.00 | Window Closed / Lapsed |