Patent US3412129A successfully refreshed from Google Patents.
US3412129A
Expired / Lapsed
US
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Alkali metal sulfate substituted organosiloxanes containing internal sulfate groups and process therefor
Assignee: General Electric Co
•
Filing: 1965-12-23
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Granted: 1968-11-19
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Expires: 1985-12-23
Abstract
No abstract record available.
Inventors
- 👤 Norman G Holdstock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:14
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/48; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; Y; Y10; Y10S; Y10S516/00; Y10S516/01
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
6 words
AN ORGANOSILICON MATERIAL HAVING THE FORMULA:
Claim 2
Dependent Claim
6 words
AN ORGANOSILICON MATERIAL HAVING THE FORMULA:
Claim 3
Independent Claim
10 words
A METHOD FOR FORMING AN ORGANOSILICON MATERIAL HAVING THE FORMULA:
Claim 4
Independent Claim
10 words
A METHOD FOR FORMING AN ORGANOSILICON MATERIAL HAVING THE FORMULA:
References Cited (Backward Citations)
US2983744A
Cited
US2968643A
Cited
US3109012A
Cited
US3161611A
Cited
US3187033A
Cited
US3215643A
Cited
US3328449A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |