US2769798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aminoplast resins and aminoplast resin compositions stabilized with oxirane compounds and process of preparing same
Assignee: Rain Carbon Germany GmbH
•
Filing: 1953-06-26
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Granted: 1956-11-06
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Expires: 1973-06-26
Abstract
No abstract record available.
Inventors
- 👤 Meis Helmut
- 👤 Decker Karl-Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:09
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/15; C08K5/151; C08K5/1515
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A COMPOSITION COMPRISING A HEAT-HARDENABLE AMINEFORMALDEHYDE RESIN SELECTED FROM THE GROUP CONSISTING OF UREA-, THIOUREA-, IMINO-UREA-, AND MELAMINE-FORMALDEHYDE RESINS AND A STABILIZING COMPOUND CORRESPONDING TO THE GENERAL FORMULA
Claim 2
Dependent Claim
28 words
A COMPOSITION COMPRISING A HEAT-HARDENABLE AMINEFORMALDEHYDE RESIN SELECTED FROM THE GROUP CONSISTING OF UREA-, THIOUREA-, IMINO-UREA-, AND MELAMINE-FORMALDEHYDE RESINS AND A STABILIZING COMPOUND CORRESPONDING TO THE GENERAL FORMULA
References Cited (Backward Citations)
US2125393A
Cited
US2637713A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-06 | 1960-05-07 | 1960-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-06 | 1964-05-07 | 1964-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-06 | 1968-05-07 | 1968-11-06 | $7700.00 | Window Closed / Lapsed |