Patent US3415797A successfully refreshed from Google Patents.
US3415797A
Expired / Lapsed
US
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Process for polymerization of vinyl monomers
Assignee: Montedison SpA
•
Filing: 1965-12-01
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Granted: 1968-12-10
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Expires: 1985-12-01
Abstract
No abstract record available.
Inventors
- 👤 Borsini Giancarlo
- 👤 Visani Francesco
- 👤 Cevidalli Guidobaldo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:51
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/20; C08F14/00; C08F14/02; C08F14/04; C08F14/06; C08F2/00; C08F2/02; Y; Y10; Y10S; Y10S526/00; Y10S526/909
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1983949A
Cited
US2327705A
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US2559947A
Cited
US3169947A
Cited
US3112298A
Cited
US3215682A
Cited
US3303156A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |