US2634282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triorganosilyl-substituted diketones
Assignee: Dow Silicones Corp
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Filing: 1951-12-13
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Granted: 1953-04-07
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Expires: 1971-12-13
Abstract
No abstract record available.
Inventors
- 👤 Leo H Sommer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:35
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0803; C07F7/081
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A KETONE OF THE FORMULA RMESI(CH2)2COCH2COX WHERE R IS SELECTED FROM THE GROUP CONSISTING OF METHYL AND PHENYL RADICALS AND X IS SELECTED FROM THE GROUP CONSISTING OF MONOVALENT HYDROCARBON RADICALS AND A RADICAL OF THE FORMULA RME2SI(CH2)2-WHERE R IS AS ABOVE DEFINED.
Claim 2
Dependent Claim
43 words
A KETONE OF THE FORMULA RMESI(CH2)2COCH2COX WHERE R IS SELECTED FROM THE GROUP CONSISTING OF METHYL AND PHENYL RADICALS AND X IS SELECTED FROM THE GROUP CONSISTING OF MONOVALENT HYDROCARBON RADICALS AND A RADICAL OF THE FORMULA RME2SI(CH2)2-WHERE R IS AS ABOVE DEFINED.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |