US2910446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Physical treatment of particulate foamable styrene polymer compositions
Assignee: Monsanto Chemicals Ltd
•
Filing: 1956-09-10
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Granted: 1959-10-27
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Expires: 1976-09-10
Abstract
No abstract record available.
Inventors
- 👤 Murray H Roth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:53
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/22; C08J2325/00; Y; Y10; Y10S; Y10S264/00; Y10S264/13; Y10S521/00; Y10S521/918
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2319040A
Cited
US2442940A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-26 | 1963-04-27 | 1963-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-26 | 1967-04-27 | 1967-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-26 | 1971-04-27 | 1971-10-27 | $7700.00 | Window Closed / Lapsed |