US3347808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating compositions
Assignee: Monsanto Co
•
Filing: 1966-07-05
•
Granted: 1967-10-17
•
Expires: 1986-07-05
Abstract
No abstract record available.
Inventors
- 👤 Lavin Edward
- 👤 Albert H Markhart
- 👤 Robert E Kass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:57
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/06; C08G73/10; C08G73/1003; C08G73/1007; C08G73/1028; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31623; Y10T428/31678; Y10T428/31681; Y10T428/31725; Y10T442/00; Y10T442/20; Y10T442/2475; Y10T442/2926; Y10T442/2992
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A COMPOSITION COMPRISING A 3-75% BY WEIGHT SOLUTION OF A POLYAMINE AND A TETRACARBOXYLIC COMPOUND PRESENT IN A PROPORTION SELECTED FROM THE RANGE OF ABOUT 70% MOLAR EXCESS OF THE POLYAMINE TO ABOUT 5% MOLAR EXCESS OF THE TETRACARBOXYLIC COMPOUND; WHEREIN THE POLYAMINE IS SELECTED FROM THE CLASS CONSISTING OF ALIPHATIC PRIMARY DIAMINES OF FROM 2 TO ABOUT 6 CARBON ATOMS, AROMATIC PRIMARY DIAMINES OF FROM 6 TO ABOUT 36 CARBON ATOMS, ALIPHATIC-AROMATIC PRIMARY DIAMINES, TRIAMINES AND MIXTURES THEREOF; WHEREIN THE TETRACARBOXYLIC COMPOUND IS SELECTED FROM THE GROUP CONSISTING OF BENZOPHENONE TETRACARBOXYLIC ACID AND ALKYL DIESTER DERIVATIVES OF BENZOPHENONE TETRACARBOXYLIC ACID, WHEREIN THE ALKYL GROUP CONTAINS FROM 1 TO 6 CARBON ATOMS.
Claim 2
Dependent Claim
112 words
A COMPOSITION COMPRISING A 3-75% BY WEIGHT SOLUTION OF A POLYAMINE AND A TETRACARBOXYLIC COMPOUND PRESENT IN A PROPORTION SELECTED FROM THE RANGE OF ABOUT 70% MOLAR EXCESS OF THE POLYAMINE TO ABOUT 5% MOLAR EXCESS OF THE TETRACARBOXYLIC COMPOUND; WHEREIN THE POLYAMINE IS SELECTED FROM THE CLASS CONSISTING OF ALIPHATIC PRIMARY DIAMINES OF FROM 2 TO ABOUT 6 CARBON ATOMS, AROMATIC PRIMARY DIAMINES OF FROM 6 TO ABOUT 36 CARBON ATOMS, ALIPHATIC-AROMATIC PRIMARY DIAMINES, TRIAMINES AND MIXTURES THEREOF; WHEREIN THE TETRACARBOXYLIC COMPOUND IS SELECTED FROM THE GROUP CONSISTING OF BENZOPHENONE TETRACARBOXYLIC ACID AND ALKYL DIESTER DERIVATIVES OF BENZOPHENONE TETRACARBOXYLIC ACID, WHEREIN THE ALKYL GROUP CONTAINS FROM 1 TO 6 CARBON ATOMS.
References Cited (Backward Citations)
US2944993A
Cited
US3075942A
Cited
US3179614A
Cited
US3190856A
Cited
US3179634A
Cited
US3182073A
Cited
FR1360488A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |