Patent US2584665A successfully refreshed from Google Patents.
US2584665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyridylchlorosilanes
Assignee: General Electric Co
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Filing: 1950-04-14
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Granted: 1952-02-05
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Expires: 1970-04-14
Abstract
No abstract record available.
Inventors
- 👤 Ben A Bluestein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:00
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
THE METHOD OF MAKING DI(2-PYRIDYL) DICHLOROSILANE WHICH COMPRISES PASSING LIQUID 2CHLOROPYRIDINE OVER HEATED SILICON WHILE THE LATTER IS MAINTAINED AT A TEMPERATURE OF FROM ABOUT 250 TO 500* C.
Claim 2
Independent Claim
29 words
THE METHOD OF MAKING DI(2-PYRIDYL) DICHLOROSILANE WHICH COMPRISES PASSING LIQUID 2CHLOROPYRIDINE OVER HEATED SILICON WHILE THE LATTER IS MAINTAINED AT A TEMPERATURE OF FROM ABOUT 250 TO 500* C.
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) | 1955-02-04 | 1955-08-06 | 1956-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-04 | 1959-08-06 | 1960-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-04 | 1963-08-06 | 1964-02-05 | $7700.00 | Window Closed / Lapsed |