US3729496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disilyl-containing compounds
Assignee: General Electric Co
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Filing: 1971-08-16
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Granted: 1973-04-24
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Expires: 1991-08-16
Abstract
Abstract A NOVEL CLASS OF SILICONE COMPOUNDS OFF THE FORMULA, (R1-O)(3-A)-SI(-RA)-(CH(-R18))Y-(CH2)2-SI(-V)(-O-R1)- (CH2)X-NH2 WHERE R, R1 AND R18 ARE HYDROCARBON RADICALS, V IS SELECTED FROM MONOVALENT HYDROCARBON RADICALS AND MONOVALENT ALKOXY AND ARYLOXY RADICALS, AND THE SYMBOLS Y, X AND A ARE WHOLE NUMBER THAT VARY FROM 0 TO 20, TO 20 AND 0 TO 2, RESPECTIVELY. THIS NOVEL CLASS OF COMPOUNDS ARE USEFUL AS GLASS SIZING AGENTS, AS FLOCCULANTS FOR COLLOIDAL ORGANIC MATTER AND AS DETERGENT RESISTANT AGENTS IN VARIOUS COMPOSITIONS.
Inventors
- 👤 A Berger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:53
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/52; C02F1/54; C02F1/545; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/40; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1804
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-23 | 1976-10-23 | 1977-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-23 | 1980-10-23 | 1981-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-23 | 1984-10-23 | 1985-04-24 | $7700.00 | Window Closed / Lapsed |