US3472830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of unconjugated alkadienes into linear polymers
Assignee: EIDP Inc
•
Filing: 1958-05-27
•
Granted: 1969-10-14
•
Expires: 1978-05-27
Abstract
No abstract record available.
Inventors
- 👤 Warren Nesmith Baxter
- 👤 Ivan Maxwell Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:30
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2457306A
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US2612493A
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US2908674A
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US2881156A
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US3044986A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |