US3754046A
Expired / Lapsed
US
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Control of molecular weight and molecular weight distributions of unsaturated polymers
Assignee: Goodyear Tire and Rubber Co
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Filing: 1969-12-04
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Granted: 1973-08-21
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Expires: 1989-12-04
Abstract
Abstract A METHOD OF CONTROLLING THE MOLECULAR WEIGHT AND THE MOLECULAR WEIGHT POLYMERS TO A CATALYTIC OLEFIN METATHESIS SUBJECTING THE POLYMERS TO A CATALYTIC OLEFIN METTHATHESISS REACTION WHILE SAID POLYMERS ARE IN CONTACT WITH AN ACYCLIC UNSATURATD COMPOUNDS, SUCH AS AN OLEFIN.
Inventors
- 👤 N Calderon
- 👤 K Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:18
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/02; C08G61/04; C08G61/06; C08G61/08; C08C; C08C19/00; C08F; C08F36/00
Claims Analysis
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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) | 1976-08-20 | 1977-02-19 | 1977-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-20 | 1981-02-19 | 1981-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-20 | 1985-02-19 | 1985-08-21 | $7700.00 | Window Closed / Lapsed |