Patent US3301838A successfully refreshed from Google Patents.
US3301838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of polymerization using a catalyst of trivalent manganese and an organic reducing agent
Assignee: Individual
•
Filing: 1963-08-20
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Granted: 1967-01-31
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Expires: 1983-08-20
Abstract
No abstract record available.
Inventors
- 👤 El-Ahmadi I Heiba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:13
CPC Classifications
C; C08; C08F; C08F4/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
16 words
A METHOD FOR FORMING A POLYMER COMPRISING POLYMERIZING AN ETHYLENICALLY UNSATURATED POLYMERIZABLE COMPOUND HAVING THE FORMULA:
Claim 2
Independent Claim
16 words
A METHOD FOR FORMING A POLYMER COMPRISING POLYMERIZING AN ETHYLENICALLY UNSATURATED POLYMERIZABLE COMPOUND HAVING THE FORMULA:
References Cited (Backward Citations)
US2614101A
Cited
US3088939A
Cited
US3032518A
Cited
US3095391A
Cited
US3098060A
Cited
FR1327480A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |