Patent US3481964A successfully refreshed from Google Patents.
US3481964A
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Process for preparing organosilicon nitrogen compounds
Assignee: Dynamit Nobel AG
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Filing: 1966-06-16
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Granted: 1969-12-02
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Expires: 1986-06-16
Abstract
No abstract record available.
Inventors
- 👤 Mohamed Roshdy Ismail
- 👤 Hans-Joachim Kotzsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:55
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2579417A
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US2579418A
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US2570719A
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US2885370A
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US3007886A
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US3036019A
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US3043798A
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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) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |