US3047559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making polymer
Assignee: Goodyear Tire and Rubber Co
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Filing: 1961-09-11
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Granted: 1962-07-31
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Expires: 1981-09-11
Abstract
No abstract record available.
Inventors
- 👤 Rowland H Mayor
- 👤 Leshin Richard
- 👤 Wargotz Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:20
CPC Classifications
C; C08; C08F; C08F136/00; C08F136/02; C08F136/04; C08F136/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A METHOD WHICH COMPRISES POLYMERIZING ISOPRENE IN THE PRESENCE OF A CATALYST AMOUNT OF A COMPLEX OF TITANIUM TETRACHLORIDE WITH AN ETHERATE OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ORGANO METALLIC COMPOUNDA OF THE GENERAL FORMULA
Claim 2
Independent Claim
38 words
A METHOD WHICH COMPRISES POLYMERIZING ISOPRENE IN THE PRESENCE OF A CATALYST AMOUNT OF A COMPLEX OF TITANIUM TETRACHLORIDE WITH AN ETHERATE OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ORGANO METALLIC COMPOUNDA OF THE GENERAL FORMULA
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) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |