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US3422039A
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US
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Method for producing silylmethylene polymer(elastomer)
Assignee: Institut Neftekhimicheskogo Sinteza Imeni A V Topchieva
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Filing: 1965-06-16
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Granted: 1969-01-14
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Expires: 1985-06-16
Abstract
No abstract record available.
Inventors
- 👤 Nikolai Sergeevich Nametkin
- 👤 Valentin Mikhailovich Vdovin
- 👤 Valery Ivanovich Zavyalov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:17
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |