US3427219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper sizing with a diamine amide derivative
Assignee: Monsanto Co
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Filing: 1965-09-17
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Granted: 1969-02-11
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Expires: 1985-09-17
Abstract
No abstract record available.
Inventors
- 👤 Francis A Bonzagni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:04
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/34; D21H17/41; C; C08; C08F; C08F8/00; C08F8/30; C08F8/32; C08F2800/00; C08F2800/10; C08F2800/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |