Patent US2997497A successfully refreshed from Google Patents.
US2997497A
Expired / Lapsed
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Organo-silicon peroxides and their preparation
Assignee: Kali Chemie AG
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Filing: 1956-06-07
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Granted: 1961-08-22
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Expires: 1976-06-07
Abstract
No abstract record available.
Inventors
- 👤 Jenkner Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:42
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/04; C07F7/08; C07F7/0834; C07F7/0894
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
A METHOD FOR PREPARING SILICON PEROXIDES COMPRISING REACTING AT TEMPERATURES BETWEEN ROOM TEMPERATURE AND ABOUT -30*C. A SILICON HALIDE COMPOUND OF THE GENERAL FORMULA
Claim 2
Independent Claim
24 words
A METHOD FOR PREPARING SILICON PEROXIDES COMPRISING REACTING AT TEMPERATURES BETWEEN ROOM TEMPERATURE AND ABOUT -30*C. A SILICON HALIDE COMPOUND OF THE GENERAL FORMULA
References Cited (Backward Citations)
US2692887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |