US1782857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for obtaining a catalytic gel
Assignee: Silica Gel Corp
•
Filing: 1926-11-19
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Granted: 1930-11-25
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Expires: 1946-11-19
Abstract
No abstract record available.
Inventors
- 👤 Ernest B Miller
- 👤 Gerald C Connolly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:37
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/02; B01J37/0201; B01J21/00; B01J21/06; B01J21/08; Y; Y10; Y10S; Y10S502/00; Y10S502/523
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) | 1933-11-24 | 1934-05-26 | 1934-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-11-24 | 1938-05-26 | 1938-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-11-24 | 1942-05-26 | 1942-11-25 | $7700.00 | Window Closed / Lapsed |