Patent US2411401A successfully refreshed from Google Patents.
US2707709A
Expired / Lapsed
US
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Non-electrostatic resinous molding compositions
Assignee: Monsanto Chemicals Ltd
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Filing: 1952-09-12
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Granted: 1955-05-03
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Expires: 1972-09-12
Abstract
No abstract record available.
Inventors
- 👤 Buchdahl Rolf
- 👤 Baer Massimo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:49
CPC Classifications
C; C08; C08L; C08L25/00; C08L25/02; C08L25/04; C08L25/06; C08L25/18; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/17; Y10S260/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A COMPOSITION OF MATTER COMPRISING FROM ABOUT 70 TO 50 PARTS OF POLYSTYRENE HAVING HOMOGENEOUSLY INCORPORATED THEREIN FROM ABOUT 30 TO 50 PARTS OF AN AMINE SALT OF SULPHONATED POLYSTYRENE, SAID AMINE SALT HAVING A SOFTENING POINT OF LESS THAN ABOUT 225*C.
Claim 2
Dependent Claim
42 words
A COMPOSITION OF MATTER COMPRISING FROM ABOUT 70 TO 50 PARTS OF POLYSTYRENE HAVING HOMOGENEOUSLY INCORPORATED THEREIN FROM ABOUT 30 TO 50 PARTS OF AN AMINE SALT OF SULPHONATED POLYSTYRENE, SAID AMINE SALT HAVING A SOFTENING POINT OF LESS THAN ABOUT 225*C.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-02 | 1958-11-01 | 1959-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-02 | 1962-11-01 | 1963-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-02 | 1966-11-01 | 1967-05-03 | $7700.00 | Window Closed / Lapsed |