Patent US2512877A successfully refreshed from Google Patents.
Patent US3085905A successfully refreshed from Google Patents.
US3085905A
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Treatment of finely divided solids with organosilicic derivatives
Assignee: Rhone Poulenc SA
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Filing: 1960-04-28
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Granted: 1963-04-16
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Expires: 1980-04-28
Abstract
No abstract record available.
Inventors
- 👤 Prevot Pierre
- 👤 Guinet Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:18
CPC Classifications
C; C09; C09C; C09C3/00; C09C3/12; B; B82; B82Y; B82Y30/00; C08; C08K; C08K9/00; C08K9/04; C08K9/06; C09C1/00; C09C1/28; C09C1/30; C09C1/3081; C01; C01P; C01P2004/00; C01P2004/60; C01P2004/61; C01P2004/62; C01P2004/64; C01P2004/80; C01P2006/00; C01P2006/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A PROCESS FOR THE PRODUCTION OF FINELY DIVIDED SOLIDS TREATED WITH ORGANOPOLYSILOXANE WHICH COMPRISES THE STEPS OF CONTACTING THE VAPOUR OF ROGANOPOLYSILOXANE WITH THE FINELY DIVIDED SOLID MATERIAL AT A TEMPERATURE SUFFICIENT TO PREVENT CONDENSATION OF THE VAPOUR OF ORGANOPOLYSILOXANE, AND ELIMINATING EXCESS ORGANOPOLYSILOXANE FROM THE TREATED MATERIAL BY PASSING AN INERT GAS THROUGH THE MATERIAL, THE SAID STEPS BEING EFFECT WHILE MAINTAINING THE MATERIAL IN FLUIDISED CONDITION THROUGHOUT THE PROCESS.
Claim 2
Dependent Claim
71 words
A PROCESS FOR THE PRODUCTION OF FINELY DIVIDED SOLIDS TREATED WITH ORGANOPOLYSILOXANE WHICH COMPRISES THE STEPS OF CONTACTING THE VAPOUR OF ROGANOPOLYSILOXANE WITH THE FINELY DIVIDED SOLID MATERIAL AT A TEMPERATURE SUFFICIENT TO PREVENT CONDENSATION OF THE VAPOUR OF ORGANOPOLYSILOXANE, AND ELIMINATING EXCESS ORGANOPOLYSILOXANE FROM THE TREATED MATERIAL BY PASSING AN INERT GAS THROUGH THE MATERIAL, THE SAID STEPS BEING EFFECT WHILE MAINTAINING THE MATERIAL IN FLUIDISED CONDITION THROUGHOUT THE PROCESS.
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) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |