US2887503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for preparing chlorophenylchlorosilanes
Assignee: General Electric Co
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Filing: 1957-08-19
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Granted: 1959-05-19
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Expires: 1977-08-19
Abstract
No abstract record available.
Inventors
- 👤 Norman G Holdstock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:38
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/20; H01G4/22; H01G4/221; H01G4/222; B; B01; B01J; B01J27/00; B01J27/06; C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/121; C07F7/127; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/46; H01B3/465
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
THE PROCESS FOR MAKING CHLOROPHENYLCHLOROSILANES CONTAINING MORE THAN THREE CHLORINE ATOMS PER PHENYL NUCLEUS, WHICH PROCESS COMPRISES CHLORINATAING WITH GASEOUS CHLORINE A PHENYLCHLOROSILANE CORRESPONDING TO THE GENERAL FORMULA
Claim 2
Dependent Claim
28 words
THE PROCESS FOR MAKING CHLOROPHENYLCHLOROSILANES CONTAINING MORE THAN THREE CHLORINE ATOMS PER PHENYL NUCLEUS, WHICH PROCESS COMPRISES CHLORINATAING WITH GASEOUS CHLORINE A PHENYLCHLOROSILANE CORRESPONDING TO THE GENERAL FORMULA
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) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |