US2947772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkoxysilanes and their use as lubricants
Assignee: Dow Silicones Corp
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Filing: 1958-11-10
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Granted: 1960-08-02
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Expires: 1978-11-10
Abstract
No abstract record available.
Inventors
- 👤 Benjamin A Eynon
- 👤 Harry M Schiefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:02
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
AN ORGANOSILICON COMPOUND SELECTED FROM THE GROUP CONSISTING OF SILANES OF THE FORMULA RSI(OR'')3 AND DISILOXANES OF THE FORMULA (R(R''O)2SI)2O IN WHICH R IS AN ALKYL GROUP OF FROM 8 TO 20 CARBON ATOMS INCLUSIVE AND R'' IS A BRANCHED ALKYL GROUP OF FROM 4 TO 20 CARBON ATOMS INCLUSIVE IN WHICH THE BRANCHING OCCURS AT THE CARBON ATOM BETA TO THE OXYGEN, IN SAID SILANES THERE BEING A TOTAL OF FROM 30 TO 50 INCLUSIVE CARBON ATOMS PER MOLECULE AND IN SAID SILOXANES THERE BEING A TOTAL OF FROM 32 TO 70 INCLUSIVE CARBON ATOMS PER MOLECULE.
Claim 2
Dependent Claim
98 words
AN ORGANOSILICON COMPOUND SELECTED FROM THE GROUP CONSISTING OF SILANES OF THE FORMULA RSI(OR'')3 AND DISILOXANES OF THE FORMULA (R(R''O)2SI)2O IN WHICH R IS AN ALKYL GROUP OF FROM 8 TO 20 CARBON ATOMS INCLUSIVE AND R'' IS A BRANCHED ALKYL GROUP OF FROM 4 TO 20 CARBON ATOMS INCLUSIVE IN WHICH THE BRANCHING OCCURS AT THE CARBON ATOM BETA TO THE OXYGEN, IN SAID SILANES THERE BEING A TOTAL OF FROM 30 TO 50 INCLUSIVE CARBON ATOMS PER MOLECULE AND IN SAID SILOXANES THERE BEING A TOTAL OF FROM 32 TO 70 INCLUSIVE CARBON ATOMS PER MOLECULE.
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) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |