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US3472795A
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US
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Polymerization process
Assignee: Union Carbide Corp
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Filing: 1967-03-10
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Granted: 1969-10-14
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Expires: 1987-03-10
Abstract
No abstract record available.
Inventors
- 👤 Frederick R Tittmann
- 👤 Michael M Goldin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:44
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/02; C08G61/025; C08G2261/00; C08G2261/30; C08G2261/34; C08G2261/342; C08G2261/3424
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3246627A
Cited
US3342754A
Cited
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 |