US2441422A
Expired / Lapsed
US
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Organosilicon-silica sols, gels, and aerogels
Assignee: General Electric Co
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Filing: 1945-02-10
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Granted: 1948-05-11
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Expires: 1965-02-10
Abstract
No abstract record available.
Inventors
- 👤 Robert H Krieble
- 👤 John R Elliott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:52
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/80; C04B41/81; C04B41/85; B; B01; B01J; B01J13/00; B01J13/0004; B01J13/0026; B01J21/00; B01J21/06; B01J21/08; C01; C01B; C01B33/00; C01B33/113; C01B33/12; C01B33/14; C01B33/157; C01B33/158; C01B33/1585; C04B41/45; C04B41/46; C04B41/49; C04B41/4905; C04B41/4922; C04B41/4927; C04B41/495; C04B41/4961; C04B41/50; C04B41/5076; C04B41/5089; C04B41/82; C04B41/84; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C08; C08L; C08L83/00; C08L83/04; D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/13; D21H17/20; D21H17/33; D21H17/46; D21H17/59; C04B2103/00; C04B2103/60; C04B2103/67; C04B2103/69; C08G; C08G77/00; C08G77/02; C08G77/04; Y; Y10; Y10S; Y10S65/00; Y10S65/901
Claims Analysis
Total Claims: 0
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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) | 1951-05-11 | 1951-11-10 | 1952-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-11 | 1955-11-10 | 1956-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-11 | 1959-11-10 | 1960-05-11 | $7700.00 | Window Closed / Lapsed |