Patent US3592799A successfully refreshed from Google Patents.
US3592799A
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Method for the manufacture of synthetic elastomers and products obtained by such method
Assignee: Compagnie Generale des Etablissements Michelin SCA
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Filing: 1966-04-28
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Granted: 1971-07-13
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Expires: 1986-04-28
Abstract
Abstract A PROCESS FOR THE PREPARATION OF POLYMERS HAVING A POLYMODAL MOLECULAR WEIGHT DISTRIBUTION WHEREIN A CONJUGATED DIENE MONOMER COMPOUND IS POLYMERIZED BY MEANS OF AN ORGANIC LITHIUM POLYMERIZATION CATALYST AND WHEN A FRACTION OF THE MONOMER HAS POLYMERIZED THEN ADDING TO THE REACTION MEDIUM AN ORGANIC HALIDE.
Inventors
- 👤 Georges Rouzier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:49
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |