US2864778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing foamable carbon dioxide-containing styrene polymer composition and foamable composition thereof
Assignee: Monsanto Chemicals Ltd
•
Filing: 1956-08-08
•
Granted: 1958-12-16
•
Expires: 1976-08-08
Abstract
No abstract record available.
Inventors
- 👤 John L Mladinich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:55
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04; C08J9/12; C08J9/127; C08J9/16; C08J9/18; C08J2203/00; C08J2203/14; C08J2325/00; C08J2325/02; Y; Y10; Y10S; Y10S264/00; Y10S264/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A COMPOSITION OF MATTER COMPRISING A FOAMABLE STYRENE POLYMER HAVING INCORPORATED THEREIN A FOAM-PRODUCING QUANTITY OF AN ALIPHATIC HYDROCARBON BOILING IN THE RANGE OF 10-80*C AND CARBON DIOXIDE IN THE AMOUNT OF AT LEAST ABOUT 0.0002 WEIGHT PERCENT OF THE TOTAL COMPOSITION.
Claim 2
Dependent Claim
42 words
A COMPOSITION OF MATTER COMPRISING A FOAMABLE STYRENE POLYMER HAVING INCORPORATED THEREIN A FOAM-PRODUCING QUANTITY OF AN ALIPHATIC HYDROCARBON BOILING IN THE RANGE OF 10-80*C AND CARBON DIOXIDE IN THE AMOUNT OF AT LEAST ABOUT 0.0002 WEIGHT PERCENT OF THE TOTAL COMPOSITION.
References Cited (Backward Citations)
US2462354A
Cited
US2681321A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |