US3423366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition comprising: (1) a bis ester of an aromatic tetracarboxylic acid,(2) an inert organic solvent,(3) melamine,and (4) an aromatic diamine
Assignee: Monsanto Research Corp
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Filing: 1966-06-30
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Granted: 1969-01-21
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Expires: 1986-06-30
Abstract
No abstract record available.
Inventors
- 👤 Ralph E De Brunner
- 👤 John K Fincke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:27
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/06; C08G73/10; C08G73/1075; C08G73/1082; C08G73/1003; Y; Y10; Y10S; Y10S264/00; Y10S264/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3282897A
Cited
US3347808A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |