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Patent US2686194A successfully refreshed from Google Patents.
US2686194A
Expired / Lapsed
US
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Organosilicon compounds
Assignee: MW Kellogg Co
•
Filing: 1951-05-31
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Granted: 1954-08-10
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Expires: 1971-05-31
Abstract
No abstract record available.
Inventors
- 👤 Herbert J Passino
- 👤 Louis C Rubin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:25
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
AS A NEW COMPOSITION OF MATTER: A PERFLUOROALKYL SILICON HALIDE HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
14 words
AS A NEW COMPOSITION OF MATTER: A PERFLUOROALKYL SILICON HALIDE HAVING 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) | 1957-08-09 | 1958-02-08 | 1958-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-09 | 1962-02-08 | 1962-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-09 | 1966-02-08 | 1966-08-10 | $7700.00 | Window Closed / Lapsed |