US1943584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inorganic gel composition
Assignee: SILICA PRODUCTS CO
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Filing: 1929-03-28
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Granted: 1934-01-16
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Expires: 1949-03-28
Abstract
No abstract record available.
Inventors
- 👤 Cross Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:59
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02; C04B28/04; C01; C01F; C01F7/00; C01F7/02; C04B28/10; C04B28/105; C09; C09K; C09K8/00; C09K8/42; C09K8/46; C10; C10M; C10M5/00; C04B2111/00; C04B2111/00474; C04B2111/00482; C04B2111/00586; C04B2111/0075; C04B2111/20; C04B2111/27; C10M2201/00; C10M2201/02; C10M2201/04; C10M2201/05; C10M2201/06; C10M2201/062; C10M2201/063; C10M2201/065; C10M2201/08; C10M2201/081; C10M2201/082; C10M2201/084; C10M2201/085; C10M2201/087; C10M2201/10; C10M2201/102; C10M2201/103; C10M2203/00; C10M2203/10; C10M2207/00; C10M2207/40; C10M2207/404; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2050/00; C10N2050/10; Y; Y02; Y02P; Y02P40/00; Y02P40/10; Y10; Y10S; Y10S106/00; Y10S106/04
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) | 1937-01-15 | 1937-07-17 | 1938-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-01-15 | 1941-07-17 | 1942-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-01-15 | 1945-07-17 | 1946-01-16 | $7700.00 | Window Closed / Lapsed |