US3423343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame retardant polyurethane materials
Assignee: Monsanto Co
•
Filing: 1965-12-07
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Granted: 1969-01-21
•
Expires: 1985-12-07
Abstract
No abstract record available.
Inventors
- 👤 James C Barnett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:55
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0066; C01; C01B; C01B25/00; C01B25/16; C01B25/26; C01B25/28; C01B25/38; C01B25/40; C01B25/405; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/64; C08G18/6461; C08K; C08K3/00; C08K3/32; C08L; C08L75/00; C08L75/04; C08J2375/00; C08J2375/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3134742A
Cited
US3208959A
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 |