US2823218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of organo-silicon compounds
Assignee: Dow Silicones Corp
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Filing: 1955-12-05
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Granted: 1958-02-11
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Expires: 1975-12-05
Abstract
No abstract record available.
Inventors
- 👤 John L Speier
- 👤 Donald E Hook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:57
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0896; C07F7/0834; C07F7/0838; C07F7/0872; C07F7/0876; C07F7/0878; C07F7/0879; C07F7/12; C07F7/14
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
69 words
IN A PROCESS FOR THE PRODUCTION OF ORGANOSILICON COMPOUNDS CONTAINING THE CARBON TO SILICON BOND BY THE REACTION OF A SILICON COMPOUND CONTAINING AT LEAST ONE H ATOM LINKED TO SI PER MOLECULE, THERE BEING NOT MORE THAN TWO H ATOMS ON ANY SI ATOM, WITH A COMPOUND CONTAINING ALIPHATIC CARBON ATOMS LINKED BY MULTIPLE BONDS, THE IMPROVEMENT WHICH COMPRISES CONTACTING THE REACTANTS IN THE PRESENCE OF CHLOROPLATINIC ACID.
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) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |