US2582614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction products of ingredients comprising a polyethylene melamine and an ethylene urea
Assignee: Wyeth Holdings LLC
•
Filing: 1950-11-25
•
Granted: 1952-01-15
•
Expires: 1970-11-25
Abstract
No abstract record available.
Inventors
- 👤 Henry P Wohnsiedler
- 👤 Edward L Kropa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:33
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/06; C08G73/0622; C08G73/0638; C08G73/0644; C08G73/02; C08G73/0273
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A COMPOSITION COMPRISING THE PRODUCT OF REACTION OF INGREDIENTS COMPRISING (1) A POLYETHYLENE MELAMINE WHICH IS A POLYAMINO-S-TRIAZINE WHEREIN AT LEAST TWO OF THE AMINO NITROGEN ATOMS EACH HAS ONE ETHYLENE GROUP ATTACHED THERETO INSTEAD OF THE TWO HYDROGEN ATOMS AND (2) AN ETHYLENE UREA WHEREIN AN ETHYLENE RADICAL REPLACES THE TWO HYDROGEN ATOMS ATTACHED TO THE NITROGEN ATOM OF AN AMIDE GROUPING AND, TOGETHER WITH SAID NITROGEN ATOM, FORMS A THREEMEMBERED RING, THE INGREDIENTS OF (1) AND (2) BEING EMPLOYED IN MOLAR PROPORTIONS RANGING FROM 0.1:10 TO 10:0.1.
Claim 2
Dependent Claim
89 words
A COMPOSITION COMPRISING THE PRODUCT OF REACTION OF INGREDIENTS COMPRISING (1) A POLYETHYLENE MELAMINE WHICH IS A POLYAMINO-S-TRIAZINE WHEREIN AT LEAST TWO OF THE AMINO NITROGEN ATOMS EACH HAS ONE ETHYLENE GROUP ATTACHED THERETO INSTEAD OF THE TWO HYDROGEN ATOMS AND (2) AN ETHYLENE UREA WHEREIN AN ETHYLENE RADICAL REPLACES THE TWO HYDROGEN ATOMS ATTACHED TO THE NITROGEN ATOM OF AN AMIDE GROUPING AND, TOGETHER WITH SAID NITROGEN ATOM, FORMS A THREEMEMBERED RING, THE INGREDIENTS OF (1) AND (2) BEING EMPLOYED IN MOLAR PROPORTIONS RANGING FROM 0.1:10 TO 10:0.1.
References Cited (Backward Citations)
US2524727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-14 | 1955-07-16 | 1956-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-14 | 1959-07-16 | 1960-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-14 | 1963-07-16 | 1964-01-15 | $7700.00 | Window Closed / Lapsed |