US2306222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of rendering materials water repellent
Assignee: General Electric Co
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Filing: 1940-11-16
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Granted: 1942-12-22
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Expires: 1960-11-16
Abstract
No abstract record available.
Inventors
- 👤 Winton I Patnode
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:54
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/59; C; C03; C03C; C03C17/00; C03C17/28; C03C17/30; C03C25/00; C03C25/10; C03C25/24; C03C25/40; C04; C04B; C04B41/00; C04B41/45; C04B41/46; C04B41/49; C04B41/4905; C04B41/4922; C04B41/4933; D06; D06M; D06M13/00; D06M13/50; D06M13/51; D06M13/513; D06M13/517; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; D06M15/643; D06M15/6436; H; H01; H01B; H01B3/00; H01B3/002; Y; Y10; Y10S; Y10S166/00; Y10S166/902; Y10S215/00; Y10S215/06; Y10S8/00; Y10S8/01; Y10T; Y10T442/00; Y10T442/20; Y10T442/2164; Y10T442/218
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) | 1945-12-21 | 1946-06-22 | 1946-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-12-21 | 1950-06-22 | 1950-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-12-21 | 1954-06-22 | 1954-12-22 | $7700.00 | Window Closed / Lapsed |