US2978425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating compositions containing modified urea resins
Assignee: Monsanto Chemicals Ltd
•
Filing: 1957-12-05
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Granted: 1961-04-04
•
Expires: 1977-12-05
Abstract
No abstract record available.
Inventors
- 👤 Harry M Culbertson
- 👤 Frank J Hahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:40
CPC Classifications
C; C08; C08G; C08G12/00; C08G12/02; C08G12/26; C08G12/34; C08G12/36; C08G12/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A RESIN COMPRISING AN ETHERIFIED REACTION PRODUCT OF AT LEAST 2 MOLS OF A MONOHYDRIC ACYCLIC ALCOHOL CONTAINING 1-6 CARBON ATOMS AND A CO-CONDENSATION PRODUCT OF 1 MOL OF UREA, 0-0.3 MOL OF MELAMINE, 0.02-0.5 MOL OF AN N-SUBSTITUTED MELAMINE AND AT LEAST 2 MOLS OF FORMALDEHYDE; SAID N-SUBSTITUTED MELAMINE BEING SELECTED FROM THE GROUP CONSISTING OF N,N''-DIALKYLMELAMINES, N,N'',N"-TRIALKYLMELAMINES AND MIXTURES THEREOF, THE INDIVIDUAL ALKYL GROUPS OF SAID N-SUBSTITUTED MELAMINES BEING ACYCLIC AND CONTAINING A MAXIMUM OF ABOUT 20 CARBON ATOMS, THE TOTAL NUMBER OF CARBON ATOMS CONTAINED IN ALL OF SAID ALKYL GROUPS NOT EXCEEDING ABOUT 36.
Claim 2
Dependent Claim
98 words
A RESIN COMPRISING AN ETHERIFIED REACTION PRODUCT OF AT LEAST 2 MOLS OF A MONOHYDRIC ACYCLIC ALCOHOL CONTAINING 1-6 CARBON ATOMS AND A CO-CONDENSATION PRODUCT OF 1 MOL OF UREA, 0-0.3 MOL OF MELAMINE, 0.02-0.5 MOL OF AN N-SUBSTITUTED MELAMINE AND AT LEAST 2 MOLS OF FORMALDEHYDE; SAID N-SUBSTITUTED MELAMINE BEING SELECTED FROM THE GROUP CONSISTING OF N,N''-DIALKYLMELAMINES, N,N'',N"-TRIALKYLMELAMINES AND MIXTURES THEREOF, THE INDIVIDUAL ALKYL GROUPS OF SAID N-SUBSTITUTED MELAMINES BEING ACYCLIC AND CONTAINING A MAXIMUM OF ABOUT 20 CARBON ATOMS, THE TOTAL NUMBER OF CARBON ATOMS CONTAINED IN ALL OF SAID ALKYL GROUPS NOT EXCEEDING ABOUT 36.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-03 | 1964-10-03 | 1965-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-03 | 1968-10-03 | 1969-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-03 | 1972-10-03 | 1973-04-04 | $7700.00 | Window Closed / Lapsed |