US3455718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Colloidal solutions of extremely finely divided oxides which are stable on storage and process for the production thereof
Assignee: Evonik Operations GmbH
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Filing: 1965-09-23
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Granted: 1969-07-15
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Expires: 1985-09-23
Abstract
No abstract record available.
Inventors
- 👤 Karl Dithmar
- 👤 Peter Koblischek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:05
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/113; C01B33/12; C01B33/14; C01B33/141; C01B33/1415; D; D06; D06M; D06M11/00; D06M11/32; D06M11/36; D06M11/45; D06M11/46; D06M11/77; D06M11/79; D06M2400/00; D06M2400/02; Y; Y10; Y10S; Y10S106/00; Y10S106/901
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) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |