Patent US3232972A successfully refreshed from Google Patents.
US3232972A
Expired / Lapsed
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Method for producing organo-silicates
Assignee: Hygrotherm Engineering Ltd
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Filing: 1964-08-04
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Granted: 1966-02-01
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Expires: 1984-08-04
Abstract
No abstract record available.
Inventors
- 👤 Beanland Eric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:30
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/04; C07F7/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A METHOD FOR THE PRODUCTION OF ARYL SILICATES COMPRISING REACTING A PHENOL SELECTED FROM THE GROUP CONSISTING OF PHENOL, CRESOLS AND XYLENOLS IN THE MOLTEN STATE WITH A MATERIAL SELECTED FROM SILICON AND FERO-SILICON, AND IN THE PRESENCE OF A HIGH-BOILING SOLVENT, AT A TEMPERATURE ABOVE 300*C. AND UNDER SUPER-ATMOSPHERIC PRESSURE.
Claim 2
Independent Claim
51 words
A METHOD FOR THE PRODUCTION OF ARYL SILICATES COMPRISING REACTING A PHENOL SELECTED FROM THE GROUP CONSISTING OF PHENOL, CRESOLS AND XYLENOLS IN THE MOLTEN STATE WITH A MATERIAL SELECTED FROM SILICON AND FERO-SILICON, AND IN THE PRESENCE OF A HIGH-BOILING SOLVENT, AT A TEMPERATURE ABOVE 300*C. AND UNDER SUPER-ATMOSPHERIC PRESSURE.
References Cited (Backward Citations)
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Cited
US2550923A
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US2473260A
Cited
US2650204A
Cited
US2584334A
Cited
US2820806A
Cited
US3072700A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |