US2559976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resinous reaction product of aromatic amine and melamine-formaldehyde
Assignee: Wyeth Holdings LLC
•
Filing: 1947-03-26
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Granted: 1951-07-10
•
Expires: 1967-03-26
Abstract
No abstract record available.
Inventors
- 👤 Lindenfelser Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:33
CPC Classifications
C; C08; C08G; C08G12/00; C08G12/02; C08G12/26; C08G12/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A RESINOUS COMPOSITION COMPRISING THE FUSIBLE HEAT REACTION PRODUCT OF A PRIMARY MONOAMINE SELECTED FROM THE GROUP CONSISTING OF ALPHA NAPHTHYLAMINE, BETA NAPHTHYLAMINE, AND OAMINODIPHENYL AND A THERMOSETTING MELAMINEFORMALDEHYDE RESIN WHEREIN THE MOL RATIO OF THE MONOAMINE TO MELAMINE IS ABOUT 0.5:1, RESPECTIVELY.
Claim 2
Dependent Claim
43 words
A RESINOUS COMPOSITION COMPRISING THE FUSIBLE HEAT REACTION PRODUCT OF A PRIMARY MONOAMINE SELECTED FROM THE GROUP CONSISTING OF ALPHA NAPHTHYLAMINE, BETA NAPHTHYLAMINE, AND OAMINODIPHENYL AND A THERMOSETTING MELAMINEFORMALDEHYDE RESIN WHEREIN THE MOL RATIO OF THE MONOAMINE TO MELAMINE IS ABOUT 0.5:1, RESPECTIVELY.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |