US2688008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixed acrylonitrile polymers
Assignee: Akzo Nobel UK PLC
•
Filing: 1950-04-26
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Granted: 1954-08-31
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Expires: 1970-04-26
Abstract
No abstract record available.
Inventors
- 👤 David W Chaney
- 👤 Howard M Hoxie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:00
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/42; C08L; C08L33/00; C08L33/18; C08L33/20; D; D01; D01F; D01F6/00; D01F6/02; D01F6/18; Y; Y10; Y10S; Y10S525/00; Y10S525/916
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2404714A
Cited
US2527863A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-30 | 1958-03-01 | 1958-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-30 | 1962-03-01 | 1962-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-30 | 1966-03-01 | 1966-08-31 | $7700.00 | Window Closed / Lapsed |