US3440222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame resistant phosphoramidate-polyester reaction products
Assignee: Stauffer Chemical Co
•
Filing: 1966-07-19
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Granted: 1969-04-22
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Expires: 1986-07-19
Abstract
No abstract record available.
Inventors
- 👤 Edward N Walsh
- 👤 Eugene H Uhing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:20
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/692; C08G63/6924; C08G63/6928; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/22; C07F9/24; C07F9/2454; C07F9/2458; C08F; C08F299/00; C08F299/02; C08F299/04; C08F299/0478; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/30; C08G18/38; C08G18/3878; C08G18/3889; C08G2110/00; C08G2110/0008; C08G2110/0025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2666750A
Cited
GB821342A
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US3175001A
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US3076010A
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US3235517A
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US3134742A
Cited
US3159605A
Cited
GB973578A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |