Patent US2914512A successfully refreshed from Google Patents.
US2914512A
Expired / Lapsed
US
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Copolymer of a conjugated diene and bis-(tri-fluoromethyl) styrene and process for preparing a composition containing same
Assignee: 3M Co
•
Filing: 1956-08-27
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Granted: 1959-11-24
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Expires: 1976-08-27
Abstract
No abstract record available.
Inventors
- 👤 Lo Elizabeth Shen
- 👤 Jr George H Crawford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:36
CPC Classifications
C; C08; C08F; C08F236/00; C08F236/02; C08F236/04; C08F236/14; C08F236/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A COPOLYMER OF A POLYMERIZABLE CONJUGATED DIENE CONTAINING FROM 4 TO 10 CARBON ATOMS AND BIS-(TRIFLUOROMETHYL) STYRENE.
Claim 2
Dependent Claim
17 words
A COPOLYMER OF A POLYMERIZABLE CONJUGATED DIENE CONTAINING FROM 4 TO 10 CARBON ATOMS AND BIS-(TRIFLUOROMETHYL) STYRENE.
References Cited (Backward Citations)
US2668164A
Cited
US2752330A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |