US3081331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Poly phosphorus ester condensates and their preparation
Assignee: Weston Chemical Corp
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Filing: 1961-08-07
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Granted: 1963-03-12
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Expires: 1981-08-07
Abstract
No abstract record available.
Inventors
- 👤 Friedman Lester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:57
CPC Classifications
C; C10; C10M; C10M107/00; C10M107/48; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/091; C07F9/093; C07F9/141; C07F9/1411; C07F9/16; C07F9/165; C07F9/1651; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4006; C07F9/4015; C07F9/48; C07F9/547; C07F9/6564; C07F9/6571; C07F9/657109; C07F9/657163; C07F9/657181; C08; C08F; C08F30/00; C08F30/02; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/38; C08G18/3878; C08G18/388; C08G18/40; C08G18/48; C08G18/50; C08G18/5075; C08G18/5078; C08G18/5081; C08G18/5087; C08G18/5093; C08G18/67; C08G18/675; C08G18/677; C08G18/6785; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4071; C08G63/00; C08G63/68; C08G63/692; C08G63/6924; C08L; C08L63/00; C08L75/00; C08L75/04; C10M105/00; C10M105/74; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/047; C10M2225/00; C10M2225/02; C10N; C10N2040/00; C10N2040/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2372244A
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US2622071A
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US2755296A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |