US3553164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organosilicon resin compositions
Assignee: Texas Instruments Inc
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Filing: 1968-07-31
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Granted: 1971-01-05
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Expires: 1988-07-31
Abstract
Abstract ORGANOSILICON RESIN COMPOSITIONS HAVING REPEATING STRUCTURAL UNITS REPRESENTED BY THE STRUCTURAL FORMULA: -(CH2)X-SI(-R1)(-R3)-O-SI(-R2)(-R4)-(CH2)X-SI(-R)(-(CH2)X- SI(-R1)(-R3)-O-SI(-R2)(-R4)-(CH2)X-)-(CH2)X- SI(-R1)(-R3)-O-SI(-R2)(-R4)-(CH2)X-SI(-R)< WHERE R IS SELECTED FROM THE GROUP CONSISTING OF ALKYLS HAVING FROM 1 TO 30 CARBON ATOMS, INCLUSIVE, CYCLOALKYLS, ARYLS, ARYLALKYLS, RELATED ETHER CONTAINING ORGANIC GROUPS, AND CARBALKOXY SUBSTITUTED DERIVATIVES THEREOF; R1, R2, R3 AND R4 ARE EACH SELECTED FROM THE GROUP CONSISTING OF ALKYLS HAVING FROM 1 TO 18 CARBON ATOMS, INCLUSIVE, CYCLOALKYLS, ARYLS, ARYLALKYLS AND THE X IS AN INTEGER FROM 2 TO 8, INCLUSIVE.
Inventors
- 👤 James William Curry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:04
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/48; C08G77/50
Claims Analysis
Total Claims: 0
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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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |